10,000 Birds

NOVEMBER 1, 2011

I think most of us in North America have come to the somewhat disappointing conclusion that fall migration is pretty much finished for the year. Foraging in the willows with the Palm Warblers was true-blue neotropic migrant still slumming it in North America, a Blackpoll Warbler. You’re done.

North America 242

North America North Carolina South America Tennessee 242

10,000 Birds

JUNE 18, 2014

The featured image above shows a female incubating eggs from my first resident breeding pair back in 2007. The four to six eggs are white and unmarked. It’s not as clear as the photo of the eggs above but I did not want to disturb the female as she was circling the nest to resume her duties.

Eggs 181

Eggs North America 2007 Woodpeckers 181

10,000 Birds

JUNE 22, 2011

Here’s a photo of a House Finch nest before the eggs hatch and the hatchlings start producing fecal sacs. v=fHSgyxRQXvg References: 1 Birds of North America Online _ Poop Week is a week of themed posts on 10,000 Birds that cover the intersection of poop and birding, a fertile precinct if there ever was one.

Bald Eagle 250

Bald Eagle Chickens North America Birds 250

10,000 Birds

DECEMBER 7, 2011

The female chooses the nest site, builds the nest, lays around 10 eggs over a two week period and incubates them for about a month. References: 1 Birds of North America Online a. entrance hole. The male seldom sticks around once the female begins incubation. The young are born precocial and leave the nest within 48 hours.

Jordan 196

Jordan North America Abandon Abandoning 196

10,000 Birds

JULY 21, 2012

Photo Essay: Green-rumped Parrotlets from Egg to Adult Wednesday, 18 July An unusual auk baby. Baby Mute Swans – “immutabilis morph” Cavity Nesting Birds of North America and Their Babies!

Costa Rica 195

Costa Rica Albatross North America Birds 195

10,000 Birds

JULY 17, 2012

Horned Larks breed widely over North America, including up here in the High Arctic. I had hoped to have some Semipalmated Plover chick photos for comparison but as of last night they seem to be still at the egg stage. Let’s start with the altricial birds, shall we? Here are five in a nest, close to fledging.

Eggs 242

Eggs North America Breeding Europe 242

10,000 Birds

JULY 23, 2014

In North America and the Caribbean, they are found mostly in suburban, urban, and agricultural areas where grain, roost, and nest sites are available. They usually lay two eggs per clutch and most often, successive clutches will be laid while adults are still attending fledglings! This next map is data from 2007 through 2008.

Breeders 217

Breeders 2002 North America Bahamas 217

10,000 Birds

JULY 4, 2012

The female alone incubates the usual 4 to 6 eggs for about two weeks beginning the day the last egg is laid. Here you can see two chicks have already hatched, one egg is split open with the chick ready to emerge and one egg has a hole in it pipped by the chick from the inside. i Kamakawiwo?ole’s

Washington 226

Washington Eggs Israel California 226

10,000 Birds

OCTOBER 21, 2015

Isla Rasa was declared a sanctuary in 1964, and egg-collecting and disturbance during the breeding season are discouraged. If you want to learn a lot about bird species, I find “Birds of North America Online” the best resource on the net. References: 1 Birds of North America Online , 2 BirdLife International.

San Francisco 168

San Francisco North America Seals Sanctuary 168

10,000 Birds

OCTOBER 10, 2012

Today, the species has all but disappeared east of the Mississippi River and has declined in western parts of its range, most likely caused by the expansion of the House Wren which destroys and removes their eggs from nest sites 1. References: 1 Birds of North America Online. This is what I am used to seeing.

Mississippi 177

Mississippi North America Eggs America 177

10,000 Birds

AUGUST 3, 2021

” And then I found out that bird song doesn’t just belong to the males, that there are female birds who sing too, only not so much in North America, and my mind was blown.**. They’re just like us–they talk with their hands (er, wings) and their feet and some are even crafty!” And, that’s it.

North America 279

North America Birds Research America 279

10,000 Birds

JUNE 19, 2013

Plus the fact that they only lay one egg per season which is incubated for about four weeks and the chicks don’t fledge for another fifty days gives you some notion as to why these birds are a Species of Special Concern. Photo from Wikipedia Commons taken by Terry Gray.

California 240

California Costa Rica North America Niger 240

10,000 Birds

FEBRUARY 29, 2012

Within a group, 1–7 male co-breeders compete for matings with 1–3 joint-nesting females who lay their eggs in the same nest cavity. References: 1 Birds of North America Online a. Most Acorn Woodpeckers are cooperative breeders and live in family groups of up to a dozen or more individuals.

Woodpeckers 213

Woodpeckers Breeders North America Groups 213

10,000 Birds

JULY 28, 2013

This pair first appeared four years ago, and are amongst the most northerly known breeding Pacific Loons in North America. I could see from the road there was an egg in the nest and when a Glaucous Gull began circling the nest I expected one of the pair to lift from the lake and return to defend the nest.

Abandon 199

Abandon Abandoning Abandonment Eggs 199

10,000 Birds

JANUARY 29, 2015

Photo Credit: Invasive and Exotic Species of North America (www.invasive.org). Some of these snakes had evidence of birds in their stomachs and some were gravid with up 55 eggs nearly ready to be laid. I volunteered to help with the first python round up in 2010 when the first large African Pythons were captured. Rock Python.

Pythons 227

Pythons Florida Mammals Reptiles 227

10,000 Birds

OCTOBER 7, 2015

They nest on large inland lakes in western North America and migrate to the Pacific coast in winter, however they maintain local populations year-round in California. They normally lay 3 to 4 eggs per clutch. Click on photos for full sized images.

California 145

California North America Eggs America 145

10,000 Birds

JUNE 3, 2020

Instead, they lay their eggs in other species’ nests, and let those nest-making birds (often significantly smaller than the cowbirds) raise their young. So that is a negative mark on both their records. In contrast, the Brown-headed Cowbird is a same-continent invasive species.

Blackbirds 193

Blackbirds Mexico Cattle Birds 193

10,000 Birds

MARCH 21, 2024

Being a westerner — raised in California, and now living in western Mexico — I was perhaps most excited about the migratory birds that breed in eastern North America. And then there was a Green Heron , not only showing us its nest, but also an egg. Then, around 4:00 p.m., And yet, there it was. But what could I do?

Mexico 246

Mexico Birds Raccoons Baltimore 246

10,000 Birds

JULY 3, 2013

The White-headed Woodpecker is a non-migratory bird found in mixed coniferous forests dominated by pine trees in far western North America. White-headed Woodpeckers usually lay 4 to 5 eggs in a clutch and we’ve seen at least three different nestlings here now. References: 1 Birds of North America Online.

Woodpeckers 154

Woodpeckers North America America Eggs 154

10,000 Birds

APRIL 5, 2012

She will be a great fit on 10,000 Birds and I ask you all to give her a warm welcome (and feel free to ask her about those robin eggs that it seems like half of North America wants to know what to do with).

2009 157

2009 North America Bird Rescue Rescue 157

10,000 Birds

MARCH 7, 2011

This happened to me recently on a birding trip, with somewhat egg-on-the-face results. Bill has led birding trips all across North America and has spoken or performed at more than 100 birding and nature festivals worldwide. I was on a birding quest trip with my friend Geoff Heeter.

2011 244

2011 Michigan Birds Ohio 244

10,000 Birds

AUGUST 10, 2016

The most common species here in North America is the Loggerhead Shrike , Laniidae ludovicianus which has 11 subspecies. Each nesting pair will have 4-8 eggs, and there is some reference to location being a factor on that quantity. Of those eleven, two, the L.i. Migrans and L.i.

Butcher 166

Butcher North America Birds Mexico 166

10,000 Birds

SEPTEMBER 1, 2015

Now, more than ever, they are an iconic piece of the birding landscape, for David Sibley’s “ The Sibley Field Guide to to Birds of Eastern North America ,” features none other than an American Goldfinch on the cover! Unlike many other songbirds, these goldfinches subsist entirely on a vegetarian, seed-based diet.

New Jersey 150

New Jersey United States Legislature Iowa 150

10,000 Birds

JULY 1, 2015

When I first approached the nest tree I saw an adult squirrel climbing the snag near the sapsucker entrance and, knowing that squirrels will eat bird eggs and nestlings, I was quite concerned. References: 1 Birds of North America Online. Click on photos for full sized images. It should be here later today.

Squirrels 157

Squirrels Woodpeckers North America Eggs 157

10,000 Birds

JANUARY 15, 2020

But the Kentish Plover was sheltering its young under its body, and the Little Ringed Plover was incubating an egg — right in the middle of downtown Madrid! But the Great Swallow-tailed Swift is one of the largest Swifts in North America. These two shorebirds are exceedingly common in western Europe.

Austria 209

Austria Spain 2019 Germany 209

10,000 Birds

SEPTEMBER 9, 2014

North American Peregrine Falcons have also enjoyed an impressive population rebound in recent years. Most birders are familiar with this story; back in the day, the pesticide DDT was in widespread use all over North America. While DDT is still used some places in the world, it has largely disappeared from use in North America.

Albatross 253

Albatross Endangered Species Bald Eagle Alaska 253

10,000 Birds

JUNE 2, 2016

Northern Flicker nestlings hatch slightly asynchronously as the adults begin incubation one to two days before the last egg is laid. According to Birds of North America Online , on day 10 or 11 their eyes are beginning to open. They also have this strange looking white fleshy fold at the jaw hinge, and a white egg tooth.

North America 110

North America Eggs America Birds 110

10,000 Birds

MAY 6, 2015

Western Bluebirds ( Sialia mexicana ) like the male shown above, as well as Eastern Bluebirds ( Sialis sialis ) and Mountain Bluebirds ( Sialis currucoides ) have all benefited from 90 years of nest boxes and bluebird trails, monitored by thousands of bluebird enthusiasts across North America.

Tenant 165

Tenant Farming Illinois North America 165

10,000 Birds

SEPTEMBER 6, 2022

They may be about bird eggs ( The Most Perfect Thing: The Inside (and Outside) of a Bird’s Egg , 2016), or a 17th-century ornithologist ( Virtuoso by Nature: The Scientific Worlds of Francis Willughby, 2016), or How Bullfinches learn songs from humans ( The Wisdom of Birds: An Illustrated History of Ornithology. 266-67).

Dissection 264

Dissection Birds Europe Eggs 264

10,000 Birds

MARCH 22, 2018

Pairs average 59 successful copulations per clutch, starting 14 days before, and peaking a few days before, the start of egg-laying 1. Pairs copulate most often in early morning, at the same time as egg-laying 1. References: 1 Birds of North America Online.

Eggs 149

Eggs North America Fish America 149

10,000 Birds

DECEMBER 18, 2014

One of the two sub-species of Red Knot occurring in North America, the Rufa subspecies breeds in the Canadian Artic Region and migrates along the east or Atlantic coast of the United States. In both cases, knots, which feed on the crabs’ eggs, can miss their peak refueling opportunity.

Endangered Species 160

Endangered Species Protection Delaware Species 160

10,000 Birds

JUNE 20, 2012

Cliff Swallows migrate to North America from their wintering grounds in South America to nest in large colonies, sometimes numbering in the thousands. It is illegal for any person to take, possess, transport, sell, or purchase them or their parts, such as feathers, nests, or eggs, without a permit.

San Diego 165

San Diego illegal California South America 165

AnimalEquality.net

OCTOBER 8, 2024

Colombina uses 13,464,000 eggs per year, meaning that a fulfilled cage-free commitment would affect the lives of nearly 48,000 hens. Update 11/11/24: Colombina has officially reinstated its global cage-free commitment and is now reporting 40% across all brands. Animal Equality has teamed up with the Open… Source

Cage Free 59

Cage Free Branding Eggs Animal 59

10,000 Birds

APRIL 2, 2013

For ornithologists, it is the documentation of a multi-year project designed to record the distribution and abundance of birds in a specific area (in North America, usually a state or a province), utilizing a mapping method involving blocks and grids.

Pennsylvania 258

Pennsylvania Breeding Sparrows Birds 258

10,000 Birds

JANUARY 3, 2023

Harrison, and Nests, Eggs, and Nestlings of North American Birds, 2nd ed. It covers 403 species: 172 nonpasserine species and 231 passerine species in the Species Accounts, 198 species beautifully illustrated by the author in the Plates section. These books are concerned with behavior. The identification guide by Paul J.

Wildlife Rehabilitation 290

Wildlife Rehabilitation Birds Family Collecting 290

Critter News

FEBRUARY 14, 2012

Animal rights advocates have singled out the crates, known as sow stalls, as inhumane, and several states have moved to ban or restrict their use not only in pork production, but also in the production of eggs and veal. There are alternatives we think are better for the welfare of sows.”.

McDonalds 100

McDonalds Gestation Crates Gestation Veal 100

10,000 Birds

AUGUST 6, 2012

And, I started daydreaming about encountering something a little different, maybe a Horned Frog, Ceratophrys cornuta, a large, squat green and brown frog of South America, with a wide mouth large enough to eat other frogs as well as reptiles. Amplexus can last from a few seconds to a few hours to a few months.

Reptiles 234

Reptiles Madagascar Family New York City 234