10,000 Birds

APRIL 2, 2013

Data collection for the Second Breeding Bird Atlas Project of Pennsylvania took place from 2004 through 2009, roughly twenty years after the first official atlas project, 1983 through 1989. It involved 83 regional coordinators directing over 2,000 volunteers, who made more than 77,500 visits to 4,937 Atlas blocks across the state.

Pennsylvania 239

Pennsylvania Breeding Birds Sparrows 239

10,000 Birds

AUGUST 18, 2013

Morphologist Gerald Mayr listed several of these in a 2004 paper. Modern flamingos build mud nests for a single egg, while modern grebes build nests of vegetation for multiple offspring. The eggs in the fossilized nest showed structural characteristics of the shell known only from modern flamingos. And that is wonderful indeed.

2001 234

2001 2006 2010 Eggs 234

10,000 Birds

OCTOBER 6, 2018

The migrants face many perils, hunters, predators, adverse weather conditions and lack of refueling opportunities due to habitat loss. Jamaica Bay, Big Egg Marsh. Jamaica Bay, Big Egg Marsh. Jamaica Bay, Big Egg Marsh. Jamaica Bay, Big Egg Marsh. Jamaica Bay, Big Egg Marsh. 28 May 2018. 28 May 2018.

2018 113

2018 Australia Woodpeckers Los Angeles 113