10,000 Birds

JULY 21, 2021

The first words describing this species in Wikipedia are “poorly-documented” Before 2015, when I first saw it in Paso Ancho, it had only been reported twice on eBird outside of its Sierra Madre Occidental breeding range: once from Taxco, Mexico, and another report from Nicaragua.

Nicaragua 264

Nicaragua 2015 2016 Mexico 264

10,000 Birds

JUNE 27, 2012

In one document, I was referred to as a “self-taught ornithologist.” As the company has been introducing me to the rest of the staff and clients, a description of my talents caught my attention. ” I am not an ornithologist. I’ve never claimed to be one. Count me as one of the many who signed up for that.

Arkansas 249

Arkansas Science Farming Woodpeckers 249

10,000 Birds

JULY 2, 2014

Birds behaviour Borneo breeding hornbills Singapore' I saw a pair flying near Chiangi Beach, across from Pulau Ubin and near the famous airport. As Singapore continues to green will hornbills continue to spread back through the city? We can hope!

Singapore 231

Singapore Uganda Malaysia Seals 231

10,000 Birds

MAY 21, 2013

Suspected hybrids between heron species, whilst extremely rare, have been documented for some time. Since then, there have been a handful of records of this rare breeding occurrence. . But they do spark an interesting and somewhat controversial debate that inevitably leads back to the same old question of what constitutes a species.

Arizona 231

Arizona Florida Cattle California 231

10,000 Birds

MAY 17, 2015

The mystery bird looked something like a male Blackpoll Warbler in alternate (breeding) plumage, but it was yellow and black instead of black and white. Brothers Anthony and Paul Hertzel, who documented the Minnesota bird, wondered if their bird could have been the offspring of a Blackpoll x Wilson’s Warbler pair.

Minnesota 226

Minnesota New York City New York Baltimore 226

10,000 Birds

DECEMBER 3, 2020

It’s similar with birds: good birds never come if you have a way of documenting them. Well, this would be a fitting season for the second, then, this was the strangest Stonechat I ever saw (those birds in January already were in breeding plumage), and it’s either a 1st winter Common male or the Siberian Stonechat.

Serbia 299

Serbia Birds Cyprus Ducks 299

10,000 Birds

SEPTEMBER 11, 2014

Some remained stored for decades before a researcher would pick them up and inquired about these poorly documented specimens. A captive breeding program was established with a facility at Gustavo del Solar’s property, not far from where the birds were re-discovered. This flock is composed of about 54 birds including nine breeding pair.

Collecting 270

Collecting Peru Neglecting Ecuador 270

10,000 Birds

SEPTEMBER 12, 2014

Recent studies show that many island species went extinct before anyone managed to document their existence. Several European zoos had this species in their collections at the time, but they either made no effort to breed it or it did not breed well in captivity. The islands of the Caribbean are no exception.

Cuba 259

Cuba Parrots Columbus DC 259

10,000 Birds

APRIL 19, 2016

For example, years ago, Eiton Tchenrov postulated that the wild progenitor of the domestic dog, some subspecies or another of wolf, could benefit from overlapping its breeding territory with human hunters. This often applies in animal behavior and ecology, and this often comes about in relation to predator pressure.

Alligators 176

Alligators Leopards Protection Rabbits 176

10,000 Birds

MAY 11, 2018

There are an additional 1,200 acres of surrounding protected refuge, supporting a documented 525 bird species! One of the highlights of birding in this Texas state park is the chance to see five owl species that breed here. Both of these have been documented in the Lower Rio Grande Valley. Photo by © KS Nature Photography.

Texas 189

Texas Owls Barn Owls Hunting 189

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. I present here an annotated collection of photos documenting the entry of new parrotlets into this world.

Eggs 269

Eggs Venezuela Porcupines 2008 269

10,000 Birds

MARCH 3, 2012

There has been a Little Owl living in this hollow branch for at least 3 years as documented in Simon’s Mote Park Blog and it is assumed to be the same individual though I am not sure whether it is a she or a he.

Owls 236

Owls New Zealand Europe Mammals 236

10,000 Birds

OCTOBER 4, 2022

Although Henslow’s had been reliably found in nearby Sharon Springs for many years, the last documented sighting was in 2008, and the sighting startled longtime birders, waking them up to the fact that breeding sites in the state were rapidly being lost. In July 2011 a Henslow’s Sparrow was found in Ames, N.Y.,

Connecticut 264

Connecticut Sparrows Birds New York 264

10,000 Birds

SEPTEMBER 20, 2012

Outside the breeding season, the birds stop vocalizing and roam in pairs or small family groups in wide-ranging feeding circuits which makes them much more difficult to find. The exquisite melody of this species was a herald of spring in a part of the world where the traditional seasons are not well marked.

Miami 230

Miami Costa Rica Florida 2005 230

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 279

Penguins Georgia Albatross New Zealand 279

10,000 Birds

MAY 10, 2015

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. First of all, this really does not sound like something subspecies occurring in the same area should do.

Sparrows 258

Sparrows Italy Asia Kyrgyzstan 258

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. The “Southern” Hoary Redpoll (nominate subspecies exilipes ) which breeds south to northern Ontario is the usual subspecies encountered. At feeders purples prefer sunflower seeds. … Birding winter finches'

2014 264

2014 2015 Alaska New Hampshire 264

10,000 Birds

OCTOBER 21, 2014

We found evidence that supported pairs as the fundamental unit of social structure, although these close associates were not always heterosexual breeding pairs and were sometimes trios. We compared these patterns with those documented for other species of parrots and other cognitively complex large- brained species.

Parrots 259

Parrots Dogs Primates Research 259

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.

California 240

California Costa Rica North America Niger 240

10,000 Birds

SEPTEMBER 25, 2015

This poorly documented swallow is a breeding endemic to these high mountains. These striking and inquisitive jays were perhaps the bird of the trip for me, and we took our time to soak in the experience of encountering these wonderful birds. A little further along the road, we stopped at a stake-out for Sinaloa Martin.

Mexico 247

Mexico Costa Rica Arizona Bats 247

10,000 Birds

DECEMBER 2, 2014

Phillipps’ Field Guide (I’ll be using this shortened form of the title) covers 673 avian species, including 59 endemics, and 53 species that have not been documented yet for the area but which may show up in the next few years. Borneo, the authors say, is under-birded. I think we need to do something about that.

Brunei 233

Brunei Asia Birds China 233

10,000 Birds

FEBRUARY 20, 2023

The breeding ecology of the Yellow-bellied Warbler was actually studied exactly here at Nonggang in 2019 by 3 Chinese researchers. Some Thai researchers looked at the breeding ecology of the Buff-breasted Babbler and published their findings in the somewhat unsuitable-sounding journal “Agriculture and Natural Resources”.

China 264

China Birds Pythons Eagles 264

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. By 1511 or so, King Charles V of Spain was sending orders to the Spanish explorers and Conquistadors pertaining to the Turkey. According to R.D.

Turkey 260

Turkey Columbus Spain Fowl 260

10,000 Birds

SEPTEMBER 21, 2012

Luckily the bird stuck around and was documented by several able observers. They moved around a lot, but I would say there were at least thirty and maybe up to fifty individuals, in a variety of plumages that seemed to speak of a successful breeding season. This fueled my ambitions to see more and more new birds.

Pythons 242

Pythons Litter Montana 2006 242

10,000 Birds

MAY 12, 2017

In order for introduced birds to become countable in the high-stakes world of official bird-counting, they must establish a self-sustaining breeding population (think everybody’s favorites, the European Starling and the House Sparrow ). Over time, Pearson’s prediction proved accurate.

New York 150

New York New York City Illinois Wisconsin 150

10,000 Birds

SEPTEMBER 6, 2012

Within the continental United States, nesting was first documented in 1987 in the Florida Keys, and since 2005 nesting has occurred in small numbers on Bush Key in the Dry Tortugas. On land, nesting occurs inside sheltered crevices on small offshore cays and islands. Colonies tend to be considerably smaller compared to the previous species.

Florida 210

Florida United States Fish 2005 210

10,000 Birds

OCTOBER 6, 2015

Each account contains a range map created by Weidensaul, utilizing diverse sources–breeding bird atlases, banding data, research articles. (It We don’t simply learn that Great Horned Owls sometimes eat fish, we learn that in northeastern California, they eat Tui chub and in Pennsylvania they eat brown bullhead catfish.

North America 255

North America Owls America Dominican Republic 255

10,000 Birds

DECEMBER 6, 2016

Appendices list all vagrant species; “hypothetical species”—20 species reported by reliable observers but not well documented; and “more species to watch for in NCA”—20 species that should be showing up based on historical records, birds of neighboring countries and migratory patterns.

El Salvador 235

El Salvador America Costa Rica Honduras 235

10,000 Birds

NOVEMBER 6, 2014

The first shorebird arrivals are apparently birds that failed at a breeding attempt and don’t have time to re-attempt; they might as well head south early. The first Semipalmated Sandpiper and Sanderling along the shores of Florida’s Treasure Coast announce the beginning of a new season. The fall migration is underway. Broad-winged Hawk.

South America 162

South America Colombia Peru Chile 162

10,000 Birds

JUNE 12, 2018

The Northwestern Hawaiian Islands are home to some of the largest assemblages of breeding seabirds in the United States. On March 21, 2018, FWS released a 198-page document entitled “ Midway Seabird Protection Project — Draft Environmental Assessment.” There is also a website with additional information.

Mice 140

Mice Albatross Honolulu Rats 140

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. The guide covers 1,433 species, the number of birds documented at the end of 2014, the cutoff point for the book. That’s pretty amazing–Bolivia has more bird species than India!

Bolivia 250

Bolivia Birds Brazil Switzerland 250

10,000 Birds

JANUARY 13, 2012

The New Jersey Bird Records Committee (NJBRC) documents 465 species of natural origin. Birds of New Jersey , written by Joan Walsh, Vince Elia, Rich Kane, and Thomas Halliwell, published by New Jersey Audubon Society, was a landmark volume; 704-pages long, it presented results of the 1993-1997 New Jersey Breeding Bird Atlas.

New Jersey 250

New Jersey 2009 Bald Eagle Birds 250

10,000 Birds

NOVEMBER 18, 2012

Just another swallow, yes, but Cave Swallows breed no closer to New York State than the southern tip of Florida, though that is not the population that supplies New York birders with our Petrochelidon fulva fix. But what’s the big deal about seeing Cave Swallows in New York anyway? After all, it’s just another swallow, right?

New York 157

New York Florida Texas Breeding 157

10,000 Birds

DECEMBER 15, 2015

Part of that research was to document human avoidance by ground mammals, and that was stark and apparent. But, if you capture wild birds (to make them pets) then breed them through one generation and they get out, they are bad at avoiding predators. I suspect social learning, well documented in birds.)

Birds 180

Birds Research Pets Hunters 180

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 193

Miami Parrots Research Alaska 193

10,000 Birds

APRIL 24, 2021

There was even that outside, enticing chance of documenting something new for Costa Rica. Also known as the Fairy Tern, this species breeds on Cocos Island and is very rarely seen from pelagic trips in Costa Rica. I had to admit that yes, holy smokes, it was a White Tern !

Costa Rica 264

Costa Rica Dolphins Sea Turtles Turtles 264

10,000 Birds

MAY 5, 2016

A letter requesting information on the permit issued to remove the nest got this response from the city, “In reference to your request for documentation for the removal of an active Osprey nest from the light pole at the soccer field, please be advised that none exist.

Transported 124

Transported Eggs Killing 2009 124