10,000 Birds

APRIL 2, 2013

A breeding bird atlas is a special kind of book. 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 225

Pennsylvania Breeding Birds Sparrows 225

10,000 Birds

JULY 18, 2012

Wood Duck ( Aix sponsa ) Female Incubating Eggs in a Nest Box “Many species of cavity-nesting birds have declined because of habitat reduction. This is the female incubating eggs in the nest box… and a couple of weeks later… then, at the ripe old age of 17 days, what’s going on out here?

North America 211

North America America Barn Owls Falcons 211

10,000 Birds

SEPTEMBER 25, 2014

Male Phalaropes, Jacanas, Tinamous, and Rheas build nests, incubate the eggs and take care of the chicks. Perhaps the most complicated and bizarre mating system is that of the Rheas of South America. They live in flocks in the open country shrubland of Southern South America. Some of the eggs will be lost to the elements.

Eggs 152

Eggs South America Raised America 152

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

JULY 21, 2022

Europe has one species (Eurasian Spoonbill), the Americas have one (Roseate Spoonbill), Australia two (Royal and Yellow-billed Spoonbill), and Asia has two as well (Eurasian and Black-faced Spoonbill). Studies on improving ostrich egg hatchability. Also, I learned that in the US , ostrich eggs are priced at $40-$75.

Ostriches 147

Ostriches Parrots Birds Eggs 147

10,000 Birds

AUGUST 20, 2013

And, in South America, there is at least one species that is being heavily preyed on by North American Minks which are not supposed to be in South America. Their natural range is in a smallish region of southern South America. Some of the lakes they breed on have been stocked with salmon and trout.

2010 200

2010 South America 2011 Argentina 200

10,000 Birds

OCTOBER 8, 2015

Brown Pelicans in non-breeding plumage. The Brown Pelican occurs in both the Pacific and Atlantic coasts of North America and northern South America. Both are the only Pelican in their non-overlapping breeding grounds. Peruvian Pelican in non-breeding plumage. Brown Pelican in Breeding Plumage.

Pelicans 157

Pelicans North America Peru Fish 157

10,000 Birds

APRIL 27, 2012

One of the more interesting aspects (in my opinion) of breeding in birds is their mating strategy. In this system, females mate and lay eggs with multiple males over the course of a breeding season, leaving males to incubate the eggs and raise the chicks. of all bird species, is polyandry. 1996, Nakamura 1998).

2002 165

2002 North America 2000 2009 165

10,000 Birds

JUNE 2, 2015

Third, observing and photographing breeding birds and their young have become acts of ethical confusion as birders, photographers, and organizational representatives debate the impact of our human presence on the nesting process. And of eggs and nests and birds on nests. Cedar Waxwings exchange berries, carry nesting material, eggs.

Eggs 263

Eggs Family 2006 New York 263

10,000 Birds

NOVEMBER 3, 2020

The goal of Around the World For Penguins is simple: Describe the 18 species of penguin and their breeding grounds “from the perspective of a traveller.” Plantema gives highly detailed information about the weather, terrain, ownership of and access to the islands and coasts where penguins breed.

Penguins 278

Penguins New Zealand Albatross Georgia 278

10,000 Birds

NOVEMBER 5, 2015

The Andean Flamingo ( Phoenicopterus andinus ) is one of the three flamingos occurring in the high Andes of South America. Egg harvesting to sell as food was intensive then, with thousands taken annually from the breeding colonies in Chile. Egg collection for local consumption still continues at lower scale.

Chile 154

Chile Endangered Species Eggs Lifestyle 154

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

SEPTEMBER 9, 2015

The Mourning Dove ( Zenaida macroura) is among the most abundant and widespread terrestrial birds endemic to North and Middle America. The nickel was placed in the nest for the photo to show me the size of the egg for identification purposes, then removed. References: 1 Birds of North America Online , 2 Droege, S.

Hunters 175

Hunters Hunting North America Game 175

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. This is a rather typical group size for Bronzed Cowbirds.

Blackbirds 154

Blackbirds Birds Mexico Cattle 154

10,000 Birds

APRIL 25, 2012

Most of the Osprey breeding in North America are migratory, only Florida, the Caribbean and Baja California host non-migratory breeders 1. In migratory populations males usually arrive to breeding grounds a few days before the females and look for nest sites. This pair copulated several times while I was observing.

California 199

California North America Sacramento Breeders 199

10,000 Birds

JUNE 16, 2016

They are described as “hardy,” and “handle marginal diets and poor housing conditions better than other breeds and still continue to produce eggs.” ” Best of all, they lay between 150 and 200 eggs per year. They have a global breeding population of 20 million, and are just gorgeous.

Rhode Island 101

Rhode Island Oklahoma Chickens Massachusetts 101

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 162

Eggs North America 2007 Woodpeckers 162

10,000 Birds

DECEMBER 20, 2014

There is a total of 235 different bird species in Greenland, most of them are migratory birds with approximately 60 species breeding within the land. Some of the most common breeding birds are White-tailed Eagles , Northern Fulmars , Black Guillemots , Common Eiders , Rock Ptarmigans , and Arctic Terns. Source: Shutterstock ).

North America 176

North America Eagles Breeding Fish 176

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

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

APRIL 2, 2024

She explains complex and sometimes controversial topics including captive breeding, environmental toxins, feral cats and other invasive predators, Hawaiian avian extinction, avian disease, California Condor distribution and history, legal loopholes, and lead poisoning.

California Condor 174

California Condor Falcons California Birds 174

10,000 Birds

AUGUST 27, 2015

Most birds use these ephemeral beaches as breeding grounds. They have adapted to breed during the dry season when sand bars are exposed and food is plenty. This results in all eggs and chicks being taken by the water and a failed nesting attempt. Pied Lapwing. Photo Credits: Amy McAndrews. Photo Credits: Kenneth Cole Schneider.

South America 167

South America Fish Breeding Eggs 167

10,000 Birds

SEPTEMBER 25, 2013

While the native apple snail continued declining, another species of apple snail native to South America began to appear in canals and ponds in South Florida. Native snails lay 20-50 eggs at a time during the spring. Exotic snails lay 300-500 eggs at a time, lay eggs throughout the year, and are more resistant to environmental changes.

Florida 217

Florida South America Eggs Bolivia 217

10,000 Birds

SEPTEMBER 24, 2014

The Bank Swallow ( Riparia riparia ) is North America’s smallest swallow. These birds have lost more than half their global population, and the 33 species combined have lost hundreds of millions of breeding individuals in just the past 40 years. References: 1 Birds of North America Online.

North America 187

North America 2014 California Birds 187

10,000 Birds

JULY 2, 2019

A distribution map shows areas in South America where the species has been found, with letters and dotted lines indicating subspecies areas, red dots showing where the type specimen was found, and X’s denoting questionable sightings. They are, of course, of antpittas building or incubating eggs on a nest. Organization.

Research 139

Research Eggs South America Costa Rica 139

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.’

Birds 209

Birds Sri Lanka Taiwan Cats 209

10,000 Birds

AUGUST 31, 2011

All New World Quail are highly gregarious, typically found in coveys or flocks except during breeding season. In California, coveys break up and pairs begin forming in February or March, followed by nest building and egg laying in May or June. She will usually lay 12 to 17 eggs, averaging five per week 1 , before beginning incubation.

California 217

California Eggs Rattlesnake Gophers 217

10,000 Birds

SEPTEMBER 15, 2014

Typically, at least here in North America, we think of migration as a north-south affair. B95 and his Calidris canutus rufa kin may travel back and forth from South America to the Arctic, but another subspecies of Red Knot , Calidris canutus islandica , makes the journey up here from Great Britain and other parts of Europe.

Africa 195

Africa Somalia North America Nigeria 195

10,000 Birds

APRIL 10, 2013

All four major flyways in North America — the aerial migration routes traveled by billions of birds each year — converge in one spot in Canada’s boreal forest, the Peace-Athabasca Delta in northeastern Alberta. About three billion birds fly north to the Boreal Forest each spring to build nests and lay eggs. depend on the Boreal Forest.

Obama 244

Obama 2008 United States North America 244

10,000 Birds

MARCH 22, 2018

The shape of the Osprey nest changes during the breeding cycle. 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 108

Eggs North America Fish America 108

10,000 Birds

AUGUST 13, 2014

” The report continues: “Following the breeding season, most tricolors are found in the Sacramento Valley where they aggregate with red-winged and other blackbird species and feed, often in large flocks, on ripening rice. References: 1 Birds of North America Online.

Blackbirds 186

Blackbirds California 2014 2013 186

10,000 Birds

DECEMBER 4, 2021

The guide, one of the last offerings in the Peterson Field Guide series from publisher HMH, shows photos of nests of most North American species and describes nest structure, location, how the bird makes the nest, number of eggs, and what the eggs look like. Donna). ==.

Birds 241

Birds Colombia Collecting Bald Eagle 241

10,000 Birds

JUNE 19, 2013

Even though the overall breeding range remains largely unchanged from that in the 1940′s, the entire coastal population has been in recent severe decline. The ecological requirements for Black Swifts to breed restrict them to a very limited supply of nesting locations. Photo from Wikipedia Commons taken by Terry Gray.

California 206

California Costa Rica North America Niger 206

10,000 Birds

JULY 17, 2012

Horned Larks breed widely over North America, including up here in the High Arctic. Here they are a common breeding bird, one of our two species that migrate from here to Europe and then south. At the same time (and sometime the same location) we have Semipalmated Plovers breeding, which makes identification a challenge.

Eggs 186

Eggs North America Breeding Europe 186

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. In addition to their homing tendency, breeding swallows are attracted to old nests. Completed nests during this breeding season cannot be touched without a permit from the U.S.

San Diego 165

San Diego illegal California South America 165

10,000 Birds

JANUARY 29, 2015

State and Federal Agencies feared that if these two large constrictor snakes are allowed to breed they would produce a hybrid super-python. Photo Credit: Invasive and Exotic Species of North America (www.invasive.org). I volunteered to help with the first python round up in 2010 when the first large African Pythons were captured.

Pythons 180

Pythons Florida Mammals Reptiles 180

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. In warm climates they can breed year round. They usually lay two eggs per clutch and most often, successive clutches will be laid while adults are still attending fledglings!

Breeders 178

Breeders 2002 North America Livestock 178