10,000 Birds

APRIL 3, 2012

There’s a little hint of white in the malar and throat too, which would seem to be a problem for the species Black- chinned Sparrow. Identification of abnormal birds such as this one is not an exact science, but this one seems to break down as one half White-throated Sparrow and one half Dark-eyed Junco.

New Jersey 217

New Jersey North Carolina Sparrows Connecticut 217

10,000 Birds

AUGUST 3, 2021

There was a time when I thought each bird species had its own individual song. Then I found out that there was this vocalization called a ‘call,’ so I thought each bird species had its own individual song (but just the males) and individual call. Bird communication is a complex and evolving science.

North America 278

North America Research Birds Groups 278

10,000 Birds

JULY 3, 2012

What I didn’t know was how this relationship actually works: the mechanics of Red Knot migration, the reduced digestive systems necessary for their long flighta, the need to fatten up quickly so they can fly to the Arctic and breed, how they compete with other shorebirds and gulls and, it turns out, humans, for horseshoe crab eggs.

Delaware 177

Delaware New Jersey Research Eggs 177

10,000 Birds

MARCH 31, 2014

Erika is a first year graduate student studying Ecosystem Science and Conservation at Duke. There were ten students in total that had signed up for the spring break “Seabirds” course in Dry Tortugas National Park, and after long drives down from North Carolina we had all made it right on time.

Birds 175

Birds Florida Groups Breeding 175