10,000 Birds

APRIL 2, 2024

Well-researched and footnoted, these sections never feel disconnected from the more personal sections. I ended up looking for photographs of Peregrine hack sites, captive breeding aviaries, Hawaii tropical forest, and the California Condors of the Grand Canyon on the Internet. Endangered. Extinction. Conservation.

California Condor 174

California Condor Falcons California Birds 174

10,000 Birds

SEPTEMBER 8, 2023

The first is that the illustrations by Dale Dyer are based, and largely seem to be the same, as the illustrations for his previous guide Birds of Central America: Belize, Guatemala, Honduras, El Salvador, Nicaragua, Costa Rica, and Panama (co-authored with Andrew Vallely, PUP, 2018). Doing this work takes time! I love the writing here.

Costa Rica 210

Costa Rica Belize El Salvador Birds 210

10,000 Birds

MAY 2, 2023

Flight Paths traces the history of migratory research in nine chapters, starting with the earliest attempts to track birds, bird banding/ringing (which she traces back to Audubon), and ending with ‘community science’ projects such as Breeding Bird Surveys and eBird. THIS IMAGE NOT IN THE BOOK. Schulman, 2023.

Science 185

Science Illinois Investigation Research 185

10,000 Birds

OCTOBER 21, 2015

Heermann’s Gulls form large breeding colonies on arid islands in the Gulf of California, Mexico, from March through July. The largest colony exists on Isla Raza, where an estimated 90–95% of the total world population breeds 1. This photo by Basar from Wikipedia Commons shows the adult in breeding plumage. www.youtube.com/watch?v=FUBX_tlHySc.

San Francisco 158

San Francisco North America Seals Sanctuary 158

10,000 Birds

JUNE 28, 2017

A new study published in The Condor analyzed the feathers of Bobolinks to determine what they eat after they leave their North American breeding grounds and fly south for the winter. The research suggests that rice emerges as an important food source late in the winter, just as harvesting time—and northern migration time—are at hand.

Advocacy 100

Advocacy South America Research America 100

10,000 Birds

APRIL 8, 2015

The Calliope Hummingbird is the smallest North American breeding bird 1. The males arrive on breeding grounds before the females and, according to their range map, they probably breed here in Shasta County. References: 1 Birds of North America Online. Click on photos for full sized images. He’s moving closer.

North America 214

North America 2010 Breeding Research 214

10,000 Birds

MAY 11, 2019

With birds bedecked in their breeding best and filling the air with song, this is migration at its loveliest. Threatened by loss of habitat both on breeding as well as wintering grounds, a few species have even become endangered or at least on a perilous track towards that worrisome designation.

Costa Rica 179

Costa Rica Species Belize New Jersey 179

10,000 Birds

SEPTEMBER 9, 2015

The Mourning Dove ( Zenaida macroura) is among the most abundant and widespread terrestrial birds endemic to North and Middle America. Even though the female lays only two eggs per nest attempt, they enjoy a protracted breeding season in which multiple nesting attempts can occur every 30 days, and in Southern locations, nearly year round.

Hunters 175

Hunters Hunting North America Game 175

10,000 Birds

JANUARY 10, 2014

Let’s say you’re a bird wrapping up your breeding season in the north of Scotland—where do your thoughts turn when winter beckons? The researchers theorize that these birds might not be strays from the Scandinavian Phalarope population, but instead perhaps originally from North America.

Iceland 184

Iceland South America Ecuador Stray 184

10,000 Birds

AUGUST 14, 2013

They packed up in June of 2013 and headed south from San Diego with the southern tip of South America as their destination. The non-breeding distribution is virtually unknown, although they are suspected to winter in northern South America (Howell and Web 1995). Very little is known about this enigmatic species.

South America 182

South America San Diego Mexico America 182

10,000 Birds

FEBRUARY 17, 2015

If this was America, we might not be concerned because starlings are an invasive species, at least in North America. Researchers are wondering if the die-off might spread to other birds or even fish. This is not something I needed to tell you but there is some new research. Since then the deaths haven’t stopped.

Science 151

Science Iraq Research Birds 151

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. The other sub-species, Calidris canutus roselaari , migrates along the Pacific Coast and breeds in Alaska and the Wrangel Island in Russia.

Endangered Species 160

Endangered Species Protection Delaware Species 160

10,000 Birds

NOVEMBER 6, 2018

It actually makes a lot of sense, the geographic features of the isthmus between North America (including Mexico, because Mexico is part of North America) and South America cut across political lines, as do birds. It is the first bird field guide to every country of Central America (plus the islands governed by those countries).

America 213

America El Salvador Costa Rica Honduras 213

10,000 Birds

AUGUST 31, 2016

But new research, published in The Auk , suggests that this narrative may not provide the whole story. ” It may be too early to speculate about how Snowy this winter may be in North America. But if you’d like to follow the latest in tracking and forecasting, a good source is Project SNOWStorm. Just tell them Hedwig sent you.

Owls 100

Owls Hawaii Stray North America 100

10,000 Birds

JULY 27, 2013

It was on the island of Trinidad, at the Aripo Agricultural Research Station, where all of these photographs were taken. Trinidad is the northern limit of the range of the Red-breasted Blackbird , though it is unclear if the occasional birds that show up in Tobago are wanderers from Trinidad or northern South America or are breeding there.

Blackbirds 166

Blackbirds Trinidad Costa Rica Nicaragua 166

10,000 Birds

JUNE 28, 2015

Known as the Great Egret in the Americas, it was commonly referred to as the Great White Heron in the Old World. Recent research however has shown it to be more closely linked to Ardea -herons. The first level is the most harmless of them all since it only pertains to birders engaged in international conversations: its common name.

Asia 178

Asia Europe Germany Breeding 178

10,000 Birds

NOVEMBER 13, 2023

In the non-breeding season, male Baya Weavers sometimes enter the basket-making trade, often with considerable success. Meanwhile, the females seem to have a much more relaxing life, at least in this early stage of the breeding season. You can see why here. The world’s tallest dwarf.’

Sri Lanka 209

Sri Lanka Birds Taiwan Cats 209

10,000 Birds

AUGUST 26, 2015

If you have read many of my posts here at 10000 Birds, you may have noticed that much of my research on bird species is derived from Birds of North America Online (BNA), a collaboration of the Cornell Lab of Ornithology and the American Ornithologists’ Union. This is the more widespread distribution map for the Purple Finch.

North America 166

North America Research America Species 166

10,000 Birds

MARCH 9, 2012

Holt founded the Owl Research Institute , an organization that focuses on long-term studies of a variety of species of owls, as well as their prey species and environments. The ORI maintains a research station in the Mission Valley of Western Montana, neighboring the Ninepipes National Wildlife Refuge.

Montana 158

Montana Owls Denver Barn Owls 158

10,000 Birds

AUGUST 20, 2015

This map shows the distribution of the World’s bird species, based on overlying the breeding and wintering ranges of all known species. It makes me think what is the meaning of life, the universe and everything? Why am I here? And where all those birds are? Map by BirdLife International.

Sri Lanka 257

Sri Lanka Botswana Africa Serbia 257

10,000 Birds

JULY 17, 2012

You don’t really know a bird until you’ve studied it on its breeding grounds. Getting intimate with a species over the course of the breeding cycle is one of the more rewarding aspects of birding, and field research too. Color markings on the legs and head are to identify individuals for research purposes).

Eggs 268

Eggs Venezuela Porcupines 2008 268

10,000 Birds

MAY 10, 2015

Birders in the Americas may not be aware of it, but from the higher ground of a European perspective the American “warblers” are intensely overrated. Then there is the fact that indicus sparrows tend to avoid human habitations while domesticus doesn’t, leading to sympatric breeding with a disputed amount of hybridisation.

Sparrows 213

Sparrows Italy Asia Austria 213

10,000 Birds

MAY 11, 2013

The hope is that their presence while inspire the grown-ups to breeding success. Click the video for a not-yet-pink baby Flamingo hatching, guzzling from a syringe, and just generally being cute and fluffy.).

Michigan 147

Michigan Chile Tennessee North America 147

10,000 Birds

SEPTEMBER 22, 2014

When Purple Finches leave Ontario in October and November, they return in mid-April to mid-May to breed. Red Crossbills comprise at least 10 “call types” in North America. White-winged Crossbills move east and west like a pendulum across North America searching for bumper cone crops. HOARY REDPOLL.

2014 234

2014 2015 Alaska New Hampshire 234

10,000 Birds

FEBRUARY 7, 2012

Very few birds – or animals for that matter – would plunge head-first into the churning cauldrons of some of South America’s most treacherous rivers. Red-ruffed Fruitcrows are a highly sought-after species and are tough to find elsewhere in South America. Torrent Ducks are the thrill-seekers of the avian world.

Ducks 238

Ducks Colombia South America Squirrels 238

10,000 Birds

MARCH 2, 2015

Many species that are currently common may stay that way, and some species will likely increase…and hopefully species besides House Sparrows , European Starlings , Rock Pigeons and Eurasian Collared-Doves , which those in North America know as the four avian horsemen of the apocalypse. Whats in it for birds?

North America 213

North America Birds San Francisco Suffering 213

10,000 Birds

MARCH 17, 2013

Proposal 2013-A-2 would split the “Guatemalan Pygmy-Owl” ( Glaucidium cobanense ) of southern Mexico and northern Central America from the widespread Northern Pygmy-Owl ( G. The proposal author (a Sage Sparrow researcher) argues that multiple factors indicate the birds deserve full species status. Sandwich Tern split.

2013 184

2013 Sparrows Owls Stray 184

10,000 Birds

FEBRUARY 12, 2013

Some uncountable species, like Mitred Parakeets , are in fact way more numerous than some of the countable species and they are clearly breeding in well-established populations. I suspect that way more research and documentation is conducted on indigenous bird species.

Miami 132

Miami Parrots Research Birds 132

10,000 Birds

MARCH 3, 2020

Diversity of habitat means, of course, great biodiversity, and the Introduction boasts that Bolivia “is the richest landlocked nation on Earth for bird diversity, the sixth richest overall, and the fifth richest in the Americas” (p. That’s pretty amazing–Bolivia has more bird species than India!

Bolivia 171

Bolivia Birds Brazil Switzerland 171

4 The Love Of Animals

SEPTEMBER 26, 2010

Of course it’s always important to research your pet food choices to help keep your pets healthy! And lastly, here is an interesting video about breed bias: ‘What is Your Dog Breed Bias? Is your childhood dog your favorite breed? Do you agree with the rest of America that the beagle is the best?

Pit Bulls 100

Pit Bulls Pets 2010 2005 100

10,000 Birds

JANUARY 5, 2016

The first shows three subspecies of Whimbrel that have occurred in North America–“Hudsonian,” “Eurasian,” and “Siberian.” Light blue boxes give brief facts on breeding age, strategy and lifespan. ” Each subspecies is also thoroughly described in the text. Authors George L.

Birds 190

Birds Groups 2015 North America 190

10,000 Birds

SEPTEMBER 4, 2018

These guides are sequels, updates, and complements to Wheeler’s previous classic books, Raptors of Eastern North America and Raptors of Western North America (PUP, 2003), now out-of-print and fetching prices in three figures on used-book sites. Hawks of North America, 2nd ed. But, they are not comprehensive treatments.

North America 189

North America Birds Mississippi Bald Eagle 189

10,000 Birds

NOVEMBER 5, 2013

A little bit of research when I got home unraveled the ways of publishers here and in Great Britain. The accounts aim for specificity and authority; dates and locations of rarity sightings are given, and research articles on nesting and behavior are cited. Even during the breeding season the birds appear to be quite unwary of humans.

Trinidad 193

Trinidad Birds South America Research 193

10,000 Birds

JUNE 7, 2012

A lovely looking and distinctive sounding bird (so they say, I sadly have not seen one…yet), the Kirtland’s Warbler can only be found during its breeding season in Jack Pine forests 5 to 20 years old in the northern Lower Peninsula of Michigan. Previously, even researchers had problems getting access to nesting Kirtland’s Warblers.

Michigan 226

Michigan Bahamas Endangered Species Research 226

10,000 Birds

NOVEMBER 20, 2012

The chance that this was a real Turkey are not great, and the chance that Columbus actually brought breeding stock from Honduras to Spain is not great, so maybe, maybe not. The history of the Wild Turkey, the reduction to its original range, and its re-expansion and re-introduction, remains today unclear and in need of further research.

Turkey 201

Turkey Columbus Spain Fowl 201

10,000 Birds

SEPTEMBER 16, 2011

From there, we learn of the effects of season creep on Great Tits and winter moth caterpillars in the Netherlands, the increasing gap between male and female migration dates in Africa-wintering Barn Swallows and the lengthening migration of Barred Warblers as their breeding grounds shift north.

Netherlands 158

Netherlands Birds Buffalo Science 158

10,000 Birds

JANUARY 26, 2014

The Yellow-rumped Warbler ( Setophaga coronata ) complex is one of the most abundant and widespread representatives of the New World warbler family in North America, present in many parts of the United States even through the winter months, when the birds feed on small fruits and other foods, including sap.

United States 232

United States 2011 Guatemala North America 232