10,000 Birds

OCTOBER 22, 2014

The last time I visited Portola was in the summer of 2011 when the Swainson’s Hawks ( Buteo swainsoni ) were nesting there. Each autumn, nearly the entire breeding population of the Swainson’s Hawk migrates from the temperate zone of North America to wintering areas in South America. Click on photos for full sized images.

Nevada 160

Nevada North America Utah Oregon 160

10,000 Birds

JULY 24, 2014

On the contrary, the birds were quite satisfied with their new-found freedom and realms, and started breeding immediately after their escape in the spring of 2001, much to everyone’s surprise. They might have a negative impact on local flora, invertebrates and small rodents, either directly or indirectly through competition for food.

Germany 238

Germany Birds 2000 South America 238

10,000 Birds

JULY 21, 2011

The clifftop habitats along rocky shores of the North Atlantic (on both sides of the pond) abound in bird biomass during breeding bouts, for instance. Those mammals consist of the previously mentioned fossorial members of Insectivora, Rodents, and bats. Accessed July 12, 2011 at [link] a. Sources Laden, Greg. Myers, P.,

Mammals 172

Mammals Rodents Birds Reptiles 172

10,000 Birds

JUNE 1, 2021

610)) to a little history (“The elegant White-tailed Kite was formerly shot in large numbers by farmers who thought it threatened their chickens, although these birds feed almost entirely on insects and a few rodents” (p. Press, 2011, cited as “RTP to Paul Brooks, March 6, 1945, Peterson Institute.”

North America 278

North America America Birds California Condor 278

10,000 Birds

FEBRUARY 5, 2012

The Blackbird die-off that was observed in north-west Baden-Württemberg, neighbouring parts of Rheinland-Pfalz and southern Hessen in 2011 was caused by the Usutu Virus. and species breeding in cavities are less affected. I frequently observed Blackbirds walking on the ground like rodents, even ducking under low tufts of grass.

Germany 159

Germany Blackbirds 2006 Denmark 159