10,000 Birds

MARCH 15, 2011

Over the next few days, the Alpine Accentors ( Prunella collaris ) will arrive on their high-Alpine breeding grounds – it is time to start singing, despite that the treeless Alpine landscape is still under metres of snow. all Alpine Accetor photos digiscoped (c) Dale Forbes. all Alpine Accetor photos digiscoped (c) Dale Forbes.

2011 221

2011 Breeders Breeding Deer 221

10,000 Birds

JULY 21, 2011

Here’s some data from the famous research project of Manu, Peru, giving biomass in kilograms per hectare. 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. Accessed July 12, 2011 at [link] a. Sources Laden, Greg.

Mammals 179

Mammals Rodents Birds Reptiles 179

10,000 Birds

JUNE 1, 2021

The first guide bearing the National Audubon Society imprint was Audubon Bird Guide; Eastern Land Birds , written by Richard Hooper Pough, and illustrated by Don Eckelberry. I am particularly happy to see that the bird communication section includes recent research on singing female birds. These are all informative and current.

North America 279

North America America Birds California Condor 279