10,000 Birds

JULY 19, 2014

Here at 10,000 Birds we are going to dedicate the coming week, from today until Saturday, to invasive species. Of course, most of the species we will cover will fit the more traditional definition of invasive species, which usually only covers introduced species that are doing harm to species in the areas to which they are introduced.

Species 185

Species New Zealand North America Mammals 185

10,000 Birds

NOVEMBER 17, 2023

It was Montagu who first realised that the “Ring-tail hawk” and the gray male Hen Harrier were the same species, and that the bird he called the Ash-coloured Falcon was a different species to the Hen Harrier, an impressive achievement at that time.

Falcons 222

Falcons Collecting 2003 Wounded 222

10,000 Birds

MARCH 2, 2015

Though all birds will be somehow impacted by climate change, I think it is important to note that not all will suffer. That said, there are many species we should be extremely concerned about. This is a Pika, a charismatic and beloved mammal found in high elevations in much of western North America.

North America 215

North America Birds Suffering San Francisco 215

10,000 Birds

FEBRUARY 27, 2013

These vociferous little birds can usually be heard throughout the freshwater and saltwater marshes in North America. The male of the species will rattle off up to 200 songs, his repertoire size varying geographically, with the western males having considerably larger repertoires than eastern males 1.

Sacramento 161

Sacramento North America Wildlife Defenders Of Wildlife 161

10,000 Birds

NOVEMBER 14, 2014

Many Nearctic species and families reach their southern terminus in the Northern Central American Highlands, such as Common Raven , Red Crossbill , Steller’s Jay , and even Brown Creeper. Alex also masterfully worked another tricky species into view for us during that first afternoon, Ruddy Crake (a close relative of the Black Rail ).

Honduras 214

Honduras Costa Rica El Salvador Arizona 214

10,000 Birds

FEBRUARY 26, 2013

Private property holders with prairie/agricultural land can potentially make a big difference in maintaining and recovering populations of many of these charismatic species. Aside from being one of our best-looking birds, Golden-winged Warblers are one of North America’s most imperiled warblers. Shocking, I know.

United States 157

United States Protection Endangered Species North America 157

10,000 Birds

FEBRUARY 13, 2013

The name Peregrine means “wanderer,” and northern-nesting Peregrines are among North America’s long-distance migratory species, some moving 25,000 kilometers every year. With the help of a captive breeding program, the Peregrine bounced back, and in 1999, they were removed from the Endangered Species List.

Falcons 134

Falcons Wildlife Sacramento Endangered Species 134