10,000 Birds

JUNE 1, 2021

If you remember that the first edition of Sibley was published with “National Audubon Society” on the cover, raise your hand. The photographs are from VIREO, the ornithological image collection associated with the Academy of Natural Sciences of Drexel University, which licenses bird photographs to many guides and reference books.

North America 279

North America America Birds California Condor 279

10,000 Birds

JULY 3, 2012

What I didn’t know was how this relationship actually works: the mechanics of Red Knot migration, the reduced digestive systems necessary for their long flighta, the need to fatten up quickly so they can fly to the Arctic and breed, how they compete with other shorebirds and gulls and, it turns out, humans, for horseshoe crab eggs.

Delaware 179

Delaware New Jersey Research Eggs 179

10,000 Birds

FEBRUARY 20, 2023

If you have always wondered what the minimum anesthetic concentration for isoflurane and sevoflurane for the Crested Serpent-eagle is, science has an answer. The breeding ecology of the Yellow-bellied Warbler was actually studied exactly here at Nonggang in 2019 by 3 Chinese researchers. So you just have to look at the photos for once.

China 227

China Birds Pythons Eagles 227

10,000 Birds

MARCH 3, 2020

The source of this ranking, BirdLife International, lists Bolivia as currently having 1,439 bird species, including 18 breeding endemics. This is more than eBird reports–a checklist generated from the citizen science database lists only 1,413 species. Clearly, this is an under-birded country. . .”

Bolivia 172

Bolivia Birds Brazil Switzerland 172

10,000 Birds

FEBRUARY 18, 2014

The vast majority of the 10,000+ living species of birds are passerines, and the vast majority of those have a similar system of breeding: Mom and dad bird make a nest and share parental responsibilities roughly equally, if not identically. In the latter, three or more adult individuals contribute to the raising of offspring.

Breeders 200

Breeders Breeding Birds Groups 200

10,000 Birds

JUNE 24, 2021

The fields near the Tiaozini mudflats look very much like a lunar landscape, but this does not seem to keep a number of species from breeding there, sometimes directly on dirt roads. But now back to birds … Little Ringed Plovers also seem to like to breed directly on the road. Blandness sells.

Birds 214

Birds Uganda Breeding Rats 214

10,000 Birds

MARCH 13, 2012

Durban museum based ornithologist Philip Clancey took numerous expeditions into Zululand and Mozambique, discovering several new subspecies as well as a new species to science, Lemon-breasted Canary in 1961. This bird breeds in the forests of the Transkei area and is only a winter visitor to KwaZulu-Natal. Image by Hugh Chittenden.

Mozambique 187

Mozambique South Africa Africa Collecting 187

10,000 Birds

MAY 23, 2023

Birding can be enjoyed at various levels of intensity, from casual birdwatching in one’s backyard to more dedicated pursuits that involve keeping birding lists, participating in birding competitions, or contributing to citizen science projects. According to the U.S.

United States 147

United States North America Birds America 147

10,000 Birds

APRIL 25, 2012

And much of that time is spend loafing around the breeding colonies trying to pair off and engaging in silly-looking behaviours referred to as dancing by scientists. It can take over a year to raise a chick for the larger species, and even species that can fit their entire breeding cycle into one year tend not to breed in consecutive years.

Albatross 207

Albatross Raised Breeding Rights 207

10,000 Birds

FEBRUARY 2, 2023

Some of the lazier Common Moorhens apparently try to pass the arduous work of raising their chicks on to other species -a paper describes how Little Bitterns are utilized as surrogate parents. However, the authors call this a “new breeding tactic”, which seems to mix up the discovery of the tactic with the use of the tactic.

Birds 147

Birds Geese Fish Industry 147

10,000 Birds

SEPTEMBER 10, 2014

Here’s a diagram, available on the Audubon site , that compares its 2000 range with its anticipated 2080 range: Only 1 percent of the bird’s breeding range remains stable between 2000 and 2080 if global warming continues on its current course. … Conservation Audubon endangered species Extinction Week longspurs science'

Species 175

Species Science Los Angeles 2000 175

10,000 Birds

MAY 23, 2012

You could raise an eyebrow that at a time of cuts and austerity measures across a range of environment services and departments to be able to find £375k in support of a non-native species that is reared specifically to be killed anyway is a little astonishing. of nearly 500 radio-tagged releases). of nearly 500 radio-tagged releases).

Industry 192

Industry Research Raised Killing 192

10,000 Birds

JULY 18, 2012

Others, like the petrels and some of the auks, will lay a single egg per breeding attempt. The investment placed in each clutch bur seabirds is so great that only one breeding attempt can be seen to completion each year. They are cavity nesters, breeding in natural cavities or holes dug into the soil. So why do it?

Eggs 164

Eggs Puffins Breeding Raised 164

10,000 Birds

SEPTEMBER 9, 2014

This bit of science is a nice final counterpoint to an account that has emphasized art, history, and literature. He effectively brings his point across by presenting facts and images and a little bit of hard science. Or the destruction of the forests, food source and breeding grounds. We’ve all read Jurassic Park.

2014 160

2014 Killing Michigan Kentucky 160

10,000 Birds

JULY 7, 2020

This is a delightful book, large (8-1/2 by 11 inches), filled with Sibley’s distinctive artwork and an organized potpourri of research-based stories about the science behind bird’s lives. His art is beloved (if you have owned a Sibley calendar at least once in your life, raise your hand) and his bird expertise is widely respected.

2020 264

2020 Birds Groups North America 264

10,000 Birds

NOVEMBER 10, 2022

With regard to the Grey-backed Thrush , “further research should focus on identification of nest predators, implications of nest exposure and begging calls on nesting success, and breeding habitat requirements at different spatial and temporal scales of Grey-backed Thrush in fragmented landscapes of northeast China.”

Birds 197

Birds China Eggs Owls 197

10,000 Birds

MARCH 20, 2011

Another 170 are in captivity, many of them breeding stock for reintroduction efforts. My friend Vickie Henderson , who has some serious long-range vision, looked at the science behind Tennessee’s crane hunting proposal and found it badly wanting. There are 400 whooping cranes left in the wild, 100 of them in the eastern population.

2011 242

2011 Hunting Kentucky Hunters 242

10,000 Birds

MARCH 14, 2011

Letters from Eden (Houghton Mifflin, 2006) will soon be followed by a memoir about the birds she has raised, healed, studied and followed throughout her life. They reach breeding maturity at four to seven years of age, produce only one chick per nesting season, and only one in three offspring survive to fledging age.

2011 245

2011 Kentucky Tennessee Hunting 245

10,000 Birds

MARCH 2, 2023

I am not sure about the security situation in Iraq these days but at least some people do ornithological research there – resulting in papers such as one titled “Breeding observations of the Black-winged Kite Elanus caeruleus (Desfontaines , 1789) in Iraq” Impressive. Fortunately, they are quite common in Shanghai.

Birds 130

Birds Iraq China Ireland 130

10,000 Birds

MAY 19, 2011

Another question this raises has to do with migration itself. Loons hardly ever fly when they are on their breeding grounds or their winter-water, but the migration is for many loons a non-trivial distance. Annals of the New York Academy of Sciences, 1046 (1), 282-293 DOI: 10.1196/annals.1343.026 Why migrate? 2 PIERSMA, T.,

Research 192

Research Humane Compassion New York 192

10,000 Birds

APRIL 7, 2015

Penguins are also bellweathers of climate change; dwellers of remote areas you’ve (probably) never heard of; creatures who have developed unique, innovative ways of adapting to the harsh environments where they breed and rear chicks and the water environments in which they feed and swim.

Penguins 197

Penguins New Zealand South Africa Albatross 197

10,000 Birds

JUNE 1, 2022

And I found this one because he was singing his heart out quite persistently, which certainly suggests a bird that wants to settle down and raise a family. So yes, this appears to be a breeding population.]. And since I don’t go to the lake very often in late spring, I rarely get to see these Avocets in their breeding plumage.

Mexico 219

Mexico 2018 Ducks Breeding 219

10,000 Birds

DECEMBER 8, 2022

Hopefully, the winter time in Shanghai gives the Black-faced Buntings some time to relax from the challenges of the breeding season. In contrast, the females need to make sure not to get duped into raising actual cuckoos – the buntings are a targeted host species ( source ). No wonder no species are named after me.

Birds 206

Birds Eggs Bangladesh China 206

10,000 Birds

AUGUST 1, 2022

I have written about the interesting sex life of these jacanas a few times already (short version: female mates with male, lays a bunch of eggs for him to incubate and raise the chicks, leaves him, finds another male, repeat). The Little Grebe is of course a very common bird that can still surprise by its beauty in its breeding plumage.

Birds 147

Birds China Eggs Breeding 147