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@CornellBirds

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A world leader in the study, appreciation, and conservation of birds and biodiversity. | We’ve been “tweeting” since 1915. | Try our free @MerlinBirdID app.

Sapsucker Woods, Ithaca, NY
Joined October 2008
Don't wanna be here? Send us removal request.
@CornellBirds
Cornell Lab
3 years
Are cardinals brighter in winter? Actually, they are! Read the full answer to our Question of the Week here:
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@CornellBirds
Cornell Lab
3 years
Small, but fierce, our latest Bird of the Week lives in forests across North America. It's nocturnal & tough to spot—but once in a while you might find one in a giant Christmas tree headed for New York City. Have you seen a Northern Saw-whet Owl lately?
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@CornellBirds
Cornell Lab
8 months
MIGRATION ALERT: More than 600 MILLION birds predicted for tonight! Given the tragic mass window collisions in Chicago (see our previous post), it's an important time to dim nonessential outdoor lights at night & make your windows safer for birds:
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@CornellBirds
Cornell Lab
3 years
Our Bird of the Week lives in the high Arctic. When it makes it down to the contiguous US, it's as if a breath of the northern winter accompanied it—and looks like it's been kissed by the hoarfrost from which it gets its name. Seen Hoary Redpoll lately?
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@CornellBirds
Cornell Lab
4 years
How about that owl in the Rockefeller Christmas tree? It's a Northern Saw-whet Owl, possibly the cutest owl on the planet. Read up on these fierce little predators in our story from last year:
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@CornellBirds
Cornell Lab
4 years
Our Bird of the Week brings a dose of cuteness in the winter when it arrives in the Lower 48. This winter it's predicted to travel further south than usual, so stock up your feeders with millet and thistle seeds. Have you seen a Common Redpoll lately?
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@CornellBirds
Cornell Lab
2 years
On a small island off New Guinea, a camera trap has captured the first images *ever* taken of the Black-naped Pheasant-Pigeon, a bird that has not been seen by scientists in 140 years.
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@CornellBirds
Cornell Lab
3 years
Congratulations to Pam Garcia, her photo of a Baltimore Oriole, Blue Jay, Red-bellied Woodpecker, and a Northern Cardinal (see it?) "negotiating" over an orange wins the Project FeederWatch Birdspotter first place Grand Prize! Thanks to Wild Birds Unlimited for sponsoring!
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@CornellBirds
Cornell Lab
9 months
Migration Alert! Tonight thru Saturday, expect over 300 MILLION birds in the air each night. Bright lights can disorient them—make a difference by turning off non-essential lights and making windows safer. #LightsOutForBirds #LightsOutTexas #DarkSkies
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@CornellBirds
Cornell Lab
4 years
Moving silently across northern landscapes, our latest Bird of the Week haunts dense evergreen forests and meadows and you have to wonder whether its powerful presence gave rise to stories of haunted forests. Seen a Great Gray Owl lately? Happy Halloween!
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@CornellBirds
Cornell Lab
11 months
Just listen to the Song Sparrow’s sweet sound. Keep an ear out for this bird, commonly found across most of the United States and Canada in summer months. What birds are you hearing nearby? Pick up Merlin Bird ID to learn who's singing:
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@CornellBirds
Cornell Lab
1 year
Migration Alert!! 400 million birds will be migrating tonight—a good time to turn off nonessential outdoor lighting and to treat reflective windows to keep birds safe. Learn more at #LightsOut #LightsOutAlert
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@CornellBirds
Cornell Lab
3 years
In the cold winter weather, have you ever wondered if birds get cold feet? They do! How do they handle it? Find out in our Question of the Week:
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@CornellBirds
Cornell Lab
3 years
When you're curled up under blankets on cold winter nights, or wrapped in sweaters and coats, protected from the icy chill outside, do you ever wonder how birds survive frigid and windy winter days and nights? Find out in our Question of the Week:
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@CornellBirds
Cornell Lab
4 years
Project FeederWatch is a fun, citizen science project starting this weekend and lasting all winter. Anyone can participate, all you have to do is record birds visiting your backyard. It helps birds by providing scientists with invaluable data. Learn more:
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@CornellBirds
Cornell Lab
4 years
We may call it "birdwatching," but a lot of our hobby is "bird listening"—learning how to cue in on bird songs and calls is probably the single best way to notice and identify more birds around you. Here are some tips:
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@CornellBirds
Cornell Lab
3 years
From coast to coast our Bird of the Week is a gregarious regular at backyard feeders. Males' colorful blush of red varies in intensity according to what they eat. Both sexes fill the air with a cheerful song. Have you seen a House Finch lately?
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@CornellBirds
Cornell Lab
1 year
The amazing Shoebill looks like a throwback to Jurassic times. Join Ugandan biologist Judith Mirembe, founder of the Ugandan Women Birders group telling us all about Shoebills as part of #BlackBirdersWeek2023 . Watch live now: Image: Hugh Powell
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@CornellBirds
Cornell Lab
4 years
*BREAKING NEWS* We are thrilled that Dallas Mayor Eric Johnson proclaimed LIGHTS OUT NIGHTS in Dallas through Oct. 10th for the safety of migrating birds. #bringbirdsback Read the full press release here:
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@CornellBirds
Cornell Lab
3 years
At this time of year our latest Bird of the Week can be spotted along the coasts and other large bodies of water. Males stand out with their striking plumage. This champion diver forages as deep as 200 feet. Have you seen a Long-tailed Duck lately?
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@CornellBirds
Cornell Lab
3 years
How does a bird that weighs less than an ounce survive subzero winter temperatures? From group huddles to digging a snow cave, check out this beautifully illustrated article for a run-down of some birds' surprising strategies:
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@CornellBirds
Cornell Lab
3 years
Lots of mammals have eyelashes, they are made of hair and help protect eyes from dust and small particles. But what about birds? Birds don't have hair—so can they have eyelashes? Find out in our Question of the Week:
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@CornellBirds
Cornell Lab
3 years
Our Bird of the Week lives across N America in open fields, often seen in very large flocks—sometimes with Snow Buntings and Horned Larks. It has a very long hind claw that looks like it could use a good pedicure. Have you seen a Lapland Longspur lately?
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@CornellBirds
Cornell Lab
3 years
The Cornell Lab names a new executive director; get ready for the Great Backyard Bird Count; explore forests of paradise; how birds turn chaos into calm; and more: check out our latest eNews!
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@CornellBirds
Cornell Lab
3 years
In spring across western North America, our latest Bird of the Week transforms inland freshwater lakes into stages where courting pairs dance across the water in perfect synchrony. Have you seen a Western Grebe lately?
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@CornellBirds
Cornell Lab
4 years
We love those @BirdCams , and we love those Evening Grosbeaks
@BirdCams
Bird Cams
4 years
Those big bills are used for more than crushing seeds! Watch Evening Grosbeaks jockey for space at the #ontariofeeders live at . Follow all the action @FeederWatchCam .
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@CornellBirds
Cornell Lab
1 year
The Fiery-throated Hummingbird sometimes sips nectar by dipping its beak into flowers the way you'd expect, but sometimes it "steals" nectar by puncturing long-tubed flowers from the side. Learn all the details on Birds of the World:
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@CornellBirds
Cornell Lab
7 months
Sobering news: The @USFWS declared 10 bird species extinct yesterday. With 1 in 8 birds in the world today threatened, and many more in decline, we must redouble our efforts to protect species and habitats to ensure they never become as imperiled.
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@CornellBirds
Cornell Lab
1 year
!Migration Alert! The forecast is for 300+ MILLION birds in the air over the U.S. each of the next three nights, according to @DrBirdCast . Try turning off nonessential lighting, and treating reflective glass to help protect birds. Learn more:
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@CornellBirds
Cornell Lab
3 years
Our latest Bird of the Week is colored like a sunny, blue sky, punctuated by white clouds. Look for it moving about the treetops in eastern North America, foraging for insect prey. Have you seen a Cerulean Warbler lately?
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@CornellBirds
Cornell Lab
3 years
The arrival of our Bird of the Week across eastern North America is a sign that spring is here. Look for it in wooded areas on low perches, looking for insect prey. Or listen for its raspy, "phoe-be" song. Seen an Eastern Phoebe lately?
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@CornellBirds
Cornell Lab
4 years
This is a great time of the year to see our latest Bird of the Week, when it packs up the family and heads south from its Arctic breeding grounds, making pit stops to forage in agricultural fields. Have you seen a Greater White-fronted Goose lately?
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@CornellBirds
Cornell Lab
3 years
Look for our Bird of the Week in recently burnt forests in Canada & northern states where its favored wood-boring beetle larvae prey is abundant. Its impressive excavation abilities create shelters for other species. Seen a Black-backed Woodpecker lately?
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@CornellBirds
Cornell Lab
2 years
Migration is looking massive this weekend, with 316 to 400+ MILLION migrating birds on the wing each night, according to @DrBirdCast . Should be great birding—also a good time to turn off nonessential lights to avoid disorienting birds. #LightsOutTexas
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@CornellBirds
Cornell Lab
4 years
How do birds prepare for the winter? One way is to store food. If you notice your feeders emptying out faster than you can keep them filled at this time of year, look out for your feeder birds grabbing seeds and hiding them away for later.
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@CornellBirds
Cornell Lab
4 years
Timeless elegance, all while carrying a deadly weapon—our latest Bird of the Week walks with measured, purposeful poise, stalking prey, with nary a ruffle of one of its stunning blue-gray feathers. Have you seen a Great Blue Heron lately?
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@CornellBirds
Cornell Lab
4 years
Our latest Bird of the Week is a world traveler and a perfect representative for today's October Big Day. Its scientific name comes from the Greek word for "new moon," which describes it's long, graceful, curved bill. Have you seen a Whimbrel lately?
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@CornellBirds
Cornell Lab
4 years
Our latest Bird of the Week is an elusive little beauty, giving even seasoned birdwatchers a challenge to find. One of the best times to see one is during migration, when it heads south through eastern North America. Seen a Connecticut Warbler lately?
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@CornellBirds
Cornell Lab
4 years
Birds are migrating to their winter retreats, often thousands of miles away. How do birds, some weighing no more than the weight of a quarter, prepare for long migrations? And how do they know when to migrate? Find out in our Question of the Week:
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@CornellBirds
Cornell Lab
4 years
Baltimore Orioles in the east, Bullock's Orioles in the west—two gorgeous species, but a new study asks, are they indeed separate species? Find out in our latest issue of Living Bird magazine:
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@CornellBirds
Cornell Lab
4 years
Wow—in this #StayHome era, lots of people are birdwatching! In early April, @Team_eBird submissions are up by almost 50%, and the same goes for usage of our @MerlinBirdID app. If you're birding from home, try these quick tips for your lists:
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@CornellBirds
Cornell Lab
4 years
There's no mistaking our latest Bird of the Week—its pink hues and remarkably shaped bill can belong to no other. You'll find it along S.E. U.S. coasts, and along both east and west coasts of Mexico and Central America. Seen a Roseate Spoonbill lately?
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@CornellBirds
Cornell Lab
4 years
If you've seen Birds of North America on YouTube, it's sweet, funny, clever, inspirational, and full of birds. @JasonWardNY is the person we have to thank for it. Thanks Jason! #BlackBirdersWeek
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@CornellBirds
Cornell Lab
3 years
Migration alert! Millions of birds will fly thru night skies this weekend. It should make for fantastic birding—but don't forget to turn out lights at night, to help migrants stay on course. More at BirdCast:
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@CornellBirds
Cornell Lab
3 years
For our first Bird of the Week of 2021, we're highlighting @aba 's inspired choice for Bird of the Year: the Pileated Woodpecker. With a hefty bill, flaming crest, and slightly maniacal call, these birds are a mixture of beautiful and awe-inspiring.
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@CornellBirds
Cornell Lab
3 years
A hummingbird at your feeders on a cold, snowy day? We think of these little gems as warm-weather visitors, but more and more they are found up north during the colder months. If you see one at your feeder in the winter, will it be OK? Find out here:
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@CornellBirds
Cornell Lab
3 years
If you've seen a Bald Eagle recently, take pride in their triumphant comeback from Endangered status. A recent study with @team_ebird finds more than 71,000 nests in the Lower 48!
@USFWSNews
USFWS News
3 years
From an all-time low of ~417 nesting pairs in 1963 in the lower 48 states, today the bald eagle population has grown to 71,400+ nesting pairs. This success story results from decades of protection, the banning of the pesticide DDT, & ongoing conservation partnerships.
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@CornellBirds
Cornell Lab
3 years
The world's oldest bird, Wisdom, is back at her nest on Midway. At age 69, Wisdom has lived through several ups and downs in her species' fortunes. Check out this article for more on the history—and prospects—of the amazing Laysan Albatross:
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@CornellBirds
Cornell Lab
3 years
Public comments are open as the U.S. Fish and Wildlife Service reconsiders the Trump administration's rule to weaken the Migratory Bird Treaty Act. Through Monday, March 1, you can leave a public comment here:
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@CornellBirds
Cornell Lab
3 years
Many people paid more attention to birds during the tough times of 2020—here's how one new birdwatcher @Dr_CMGreer found calm and made friends through a shared love of the feathered beauty all around us. How have birds helped you in the last year?
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@CornellBirds
Cornell Lab
2 years
Our Bird of the Week can detect prey by sight up to half a mile away, and by sound, under a foot of snow: it certainly is a SuperbOwl! This solitary bird acts like a hawk but looks like an owl, and hunts during the day. Seen a Northern Hawk Owl lately?
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@CornellBirds
Cornell Lab
3 years
Have you ever come across a scene where a little bird is chasing or dive-bombing a bigger bird? These brave little fighters are "mobbing" potential predators. They may also mob mammals that they believe are a threat. Read more in our Question of the Week:
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@CornellBirds
Cornell Lab
2 years
Our Bird of the Week lives in western forests. It's been a bit upstaged by its ubiquitous European cousin that arrived on the continent in the 1600s, and the two look alike, but this bird is native to the continent. Seen a Band-tailed Pigeon lately?
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@CornellBirds
Cornell Lab
4 years
New research examining a diverse group of birds called honeyeaters, reveals that the size & shape of a bird's beak is determined by a balancing act between food & habitat, which can affect song. Read about it in the latest issue of Living Bird magazine:
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@CornellBirds
Cornell Lab
4 years
BirdCast is predicting that over 400 million migratory birds will take flight tonight in one of the last big migration events this fall. A good chance to get out and experience migration for those in the south central U.S.!
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@CornellBirds
Cornell Lab
3 years
The nickname "old skunkhead" falls far short describing our Bird of the Week's unique abilities. In winter, you'll find it along North American coasts, effortlessly taking on ocean waves—easily diving to avoid them. Seen a Surf Scoter lately?
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@CornellBirds
Cornell Lab
3 years
In winter, our Bird of the Week can be found in the grasslands and fields of the central U.S. It's a plump, buff colored songbird with fine brown streaks, a thin white eyering, and a long claw on the hind toe of each foot. Seen a Smith's Longspur lately?
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@CornellBirds
Cornell Lab
8 months
Billions of birds die from window collisions. Birds don't see glass, they see what's reflected, like the sky, which seems a safe place. Also, light from windows disorientates birds and causes collisions. What can we do? Find out and learn great strategies:
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@CornellBirds
Cornell Lab
4 years
As an organization dedicated to the study, protection, and appreciation of birds, the Cornell Lab of Ornithology stands with Christian Cooper and other black and brown birders who face discrimination and personal danger simply for the color of their skin while watching birds. 1/2
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@CornellBirds
Cornell Lab
3 years
It's a great time to see birds as they return from southern sojourns to spring and summer breeding grounds. Where's a good place to see them? Check out today's @nytimes article for a breakdown of great birding spots in five regions of the United States:
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@CornellBirds
Cornell Lab
2 years
Wow! @DrBirdCast projects HALF A BILLION BIRDS will be in the air tonight as they migrate south. Could be great birding for Saturday's #OctoberBigDay ! Also great time to turn out nonessential lighting and check windows for bird safety: #LightsOutTexas
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@CornellBirds
Cornell Lab
3 years
Ft Worth pledges to turn out lights during spring migration to help save migrating birds! Most birds migrate at night, but artificial lights draw them off course. Lights Out campaigns can save millions of birds. Thx Ft Worth! #LightsOutTexas
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@CornellBirds
Cornell Lab
2 years
Our Bird of the Week lives in the Rocky Mountains above the treeline, but during the winter it descends to forested habitats, congregating in flocks, often with other species. Look out for it at feeders. Have you seen a Brown-capped Rosy-Finch lately?
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@CornellBirds
Cornell Lab
3 years
Merlin pro tip. Ever heard a singing bird but couldn't whip out Sound ID fast enough to record? You can start recording immediately simply by long pressing the Merlin Bird ID icon on your home screen, then tapping "Start Sound ID." #birdsong #birdidentification #birds #protip
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@CornellBirds
Cornell Lab
1 year
In the far north our Bird of the Week hides in plain sight with whiter-than-white plumage against the tundra's snowy landscape. Large, feathered feet dig snow tunnels and burrows for refuge, and act as snowshoes. Have you seen a Rock Ptarmigan lately?
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@CornellBirds
Cornell Lab
3 years
In SW North America, our Bird of the Week punctuates the landscape with its twittering song and brilliant red plumage. Males guard their territory and have been known to present flashy insects as gifts to attract mates. Seen a Vermilion Flycatcher lately?
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@CornellBirds
Cornell Lab
7 months
The Department of the Interior is seeking public comments on a rule that will protect 13 million acres within the National Petroleum Reserve in Alaska: . America's Arctic supports a wide variety of wildlife, like these Semipalmated Sandpiper chicks.
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@CornellBirds
Cornell Lab
4 years
This Saturday is October Big Day, and it doesn't matter where in the world you live, you can be part of it! How to get started? We have 5 suggestions that can save you time, sharpen your skills, and help you uncover great birding spots along your route:
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@CornellBirds
Cornell Lab
3 years
Migration is a great time to see our Bird of the Week it as it migrates across the U.S. It's a handsome pattern of spots and speckles, stretched across a stocky body. A long bill & legs help it forage in muddy ground. Seen a Long-billed Dowitcher lately?
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@CornellBirds
Cornell Lab
3 years
Our Bird of the Week lives In the Southwest; an exquisitely patterned creature, whose muted colors are set together in a kaleidoscope of shapes, and its white-tipped crest accounts for its nickname: "cotton-top." Have you seen a Scaled Quail lately?
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@CornellBirds
Cornell Lab
7 months
Today the American Ornithological Society @amornith announced its intention to give new names to birds named after people. The Cornell Lab supports this decision. Read more about the renaming project, including plans for public engagement, from AOS:
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@CornellBirds
Cornell Lab
3 years
Our latest Bird of the Week stands out from its North American cousins with its bright red face. It's a bird of the SW, living in high-elevation forests—a preference for mature forests make it vulnerable to logging. Seen a Red-faced Warbler lately?
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@CornellBirds
Cornell Lab
2 years
As millions of birds flock to their wintering grounds @audubonsociety has launched Bird Migration Explorer—a cool new platform that uses @Team_eBird and many other data sources to visualize the incredible journeys of migratory birds in detail.
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@CornellBirds
Cornell Lab
3 years
Team Sapsucker is closing in on the end of Big Day 2021 with just over 430 species reported so far. Recent additions include a Purple-throated Euphonia in Brazil and a Crested Caracara in Florida. Huge thanks to all who have supported us through this important fundraiser!
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@CornellBirds
Cornell Lab
3 years
Our Bird of the Week wears an elaborate feathered costume of stripes & spots, moves like a ghost through its SW grassland home, and issues a descending, whistled trill of a song that might accompany a journey down the River Styx. Seen a Montezuma Quail?
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@CornellBirds
Cornell Lab
3 years
Nature is good for the soul, & focusing on #birds around you is one way to reduce stress. Figuring out who’s who can be challenging, but don’t let that deter you from feeling the joys of #birdwatching . ID boils down to four basic concepts—check them out:
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@CornellBirds
Cornell Lab
4 years
We thank Mr Cooper for speaking up for birds and reminding us of the need for all of us to work toward a more equitable world—a world where people of all backgrounds, cultures, races, and orientations can enjoy and advocate for birds and nature in safety and peace. 2/2
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@CornellBirds
Cornell Lab
1 year
Putting up a feeder and watching the birds that come to visit is a great pastime and helps connect us to nature. But is it good for birds? Is it better for them to find natural foods in the wild? Find out in our Question of the Week:
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@CornellBirds
Cornell Lab
1 year
Our Bird of the Week is a bird of the south, barely making a winter appearance north of the border. However, it's cheerful, red plumage has been brightening up the @BirdCams West Texas suet feeder in the last month. Have you seen a Hepatic Tanager lately?
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@CornellBirds
Cornell Lab
6 years
Some Common Cuckoos migrate from Kamchatka to Namibia. That's so far that you can't see the whole track on Google Earth all at one time - so Kasper Thorup had to show their 16000 km route on a flat map #IOCongress2018
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@CornellBirds
Cornell Lab
2 years
MIGRATION ALERT. We keep saying fall migration is peaking, and it keeps getting bigger! Estimate for no. of birds migrating over U.S. creeps past 600 MILLION this weekend! Learn more at BirdCast: Thx @DrBirdCast !
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@CornellBirds
Cornell Lab
4 years
Our latest Bird of the Week brings a smile of delight as it returns to backyards at this time of year across central and eastern North America. Their large beak make quick work of sunflower seeds at feeders. Have you seen a Rose-breasted Grosbeak lately?
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@CornellBirds
Cornell Lab
3 years
Is that a mini soccer ball floating on the waves? No, it's our latest Bird of the Week! This little black-and-white bird lives in Northeastern coastal waters—though a small number live off the coast of Alaska. Have you seen a Dovekie lately?
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@CornellBirds
Cornell Lab
6 years
Disclaimer: here at the Cornell Lab we are technically not into anthropomorphism. That said, we love this chronicle of House Finch nesting behavior by @mstiefvater :)
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@CornellBirds
Cornell Lab
2 years
Are cardinals brighter in winter? Actually, they are! Read the full answer to our Question of the Week here:
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@CornellBirds
Cornell Lab
5 years
If you've been saddened by this week's news about the decline of nearly 3 billion birds since 1970—take heart. We all hold the power to help #BringBirdsBack by taking these 7 Simple Actions to Help Birds: Please share!
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@CornellBirds
Cornell Lab
3 years
Our Bird of the Week comes from the cold north with a warm reputation. Breeding males are sharp white and black, with pistachio green accents on the neck. Females are barred with warm brown and black. Read more:
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@CornellBirds
Cornell Lab
6 years
Once down to only 22 remaining birds, there are now more than 200 California Condors in the wild and more than 400 total. Thank you Endangered Species Act! Here's more about the recovery work and the challenges that remain:
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@CornellBirds
Cornell Lab
3 years
Take a peek inside the forests of New Guinea, home to some of the most spectacular birds anywhere, including more than 3 dozen species of birds-of-paradise. Beautiful photography by @TimLamanPhoto
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@CornellBirds
Cornell Lab
3 years
Thanks to the Fort Worth Star-Telegram for covering the city of Dallas's bold move to turn off downtown lights during the peak of fall migration—making it easier for migrating birds to survive their journeys south.
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@CornellBirds
Cornell Lab
3 years
Houston becomes the latest Texas city to officially encourage building owners and residents to turn off lights during spring migration season. Thank you Houston!
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@CornellBirds
Cornell Lab
2 years
The river of migrants keeps coming! Tonight @DrBirdCast estimates >400 MILLION birds in the air over the U.S., with the next two nights heavy as well. Great time to turn off nonessential lights and evaluate windows for collision hazards. #LightsOutTexas
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@CornellBirds
Cornell Lab
3 years
It turns out birds can be really good at pest control—hawks and owls catch rodents; warblers help protect coffee farms; and bluebirds guard vineyards, all without chemicals. Read more in our magazine:
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@CornellBirds
Cornell Lab
3 years
Some birds use nest boxes to roost in for warmth during the winter. You can make birds even more safe and warm by putting up a special roosting box, slightly different than a nest box. Find out more, including how to build a roost box on All About Birds:
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@CornellBirds
Cornell Lab
6 years
Do you know who Alexander Wilson was? Meet the Scottish naturalist who became the "father of American Ornithology"—our latest installment of The People Behind the Birds Named for People:
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