10,000 Birds

APRIL 2, 2013

A breeding bird atlas is a special kind of book. For ornithologists, it is the documentation of a multi-year project designed to record the distribution and abundance of birds in a specific area (in North America, usually a state or a province), utilizing a mapping method involving blocks and grids.

Pennsylvania 248

Pennsylvania Breeding Birds Sparrows 248

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. The humans tended to keep away a range of predators that might take the pups as a form of interference competition.

Alligators 128

Alligators Protection Leopards Birds 128

10,000 Birds

DECEMBER 15, 2015

Most likely, all individuals of a given species have very similar genes guiding very similar developmental processes, but produce different results because the plasticity itself is selected for. Part of that research was to document human avoidance by ground mammals, and that was stark and apparent. Clearly, more research is needed!

Birds 135

Birds Research Humane Pets 135

10,000 Birds

JUNE 9, 2022

After writing this last sentence, I looked up the species in the HBW and found the sentence “Song poorly documented” in the appropriate section, while with regard to calls, the description is that “call is a two-note raspy nasal ‘ryeeh-reh’”. Accessorizing for birds. ” ( source ).

Singapore 147

Singapore Birds Mountain Goats Giraffes 147