10,000 Birds

MARCH 4, 2011

It is also familiar at inland sites in winter, especially reservoirs and refuse tips, and breeds in the relatively-Northerly regions of Europe, Asia, and North America. Yellow-Legged Gull These gulls breed around the Mediterranean and have yellow, rather than flesh-coloured legs. Get yours today!

2011 157

2011 Cyprus Deer Species 157

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 181

Bolivia Birds Brazil Switzerland 181

10,000 Birds

FEBRUARY 2, 2023

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. In Shanghai, one way to find out was to measure the concentration of these chemicals in Eurasian Tree Sparrows from different locations. But I may well be wrong.

Birds 147

Birds Geese Fish Industry 147

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. copyright @2020 by David A llen Sibley. As Sibley tells us in the Preface, he originally intended to write a children’s book.

2020 264

2020 Birds Groups North America 264

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 178

Species Science Los Angeles Birds 178

10,000 Birds

NOVEMBER 10, 2022

And yes, sparrows in areas with polluted air are less healthy. For those males who pride themselves on being good karaoke singers, it may be pleasing to hear that among male Japanese Thrushes, males breeding with two females tended to have more various trills than monogamous male breeders ( source ).

Birds 208

Birds China Eggs Owls 208

10,000 Birds

APRIL 4, 2023

Gulls and sparrows are tough but manageable; Empids may require DNA analysis (as it actually did in the case of the non-vocalizing Western Flycatcher seen in Central Park, NYC in November 2015). .” The maps are fairly complex, showing breeding range, winter range, year-round range, migration routes, times, and directions.

Los Angeles 225

Los Angeles North America America Species 225

10,000 Birds

MARCH 14, 2011

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. Ohio has tracked two families of their state-endangered breeding sandhill cranes and found them to have wintered over in Tennessee in 2010. Lots to think about.

2011 254

2011 Kentucky Tennessee Hunting 254

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 243

2011 Hunting Kentucky Hunters 243

10,000 Birds

FEBRUARY 17, 2012

Phenology is a vital science. Black-capped Chickadees , Song Sparrows , and Dark-eyed Juncos start testing their breeding songs as well, though they have a longer wait before things get serious. Among other things, it has provided some of the earliest and most compelling evidence for global warming. But good phenology is hard.

Bald Eagle 158

Bald Eagle Montana Owls Dogs 158

10,000 Birds

APRIL 1, 2014

In Sibley Two, the in-flight images literally fly across the page in slight diagonals, with the full-bodied images are presented below in a parallel order (meaning we see the same bird–fresh juvenile, worn juvenile, 1st year, Adult breeding, Adult nonbreeding–in the same part of the page for each species).

North America 247

North America Birds Species America 247

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. One Japanese study found that it arrives at its breeding grounds earlier than in the past, most likely due to increased spring temperatures. No wonder no species are named after me.

Birds 221

Birds Eggs Bangladesh China 221