“Bird Brain” is a Compliment!

Steller's Jay_BlkForest_20100424_LAH_3443Crows can make tools, or unzip your backpack to extract your lunch. Macaws have been known to open complicated latches their cages in order to escape their captors, demonstrating insight into complex problem solving. Jays can remember where they stashed each and every one of thousands of nuts. And I knew an African Gray Parrot that, in an effort to keep its owners home (and therefore receive more attention), mimicked the telephone’s ring every time anyone started to leave the house. In fact, many birds are exceptionally intelligent. But how do they fit those smarts into their tiny brains?

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Except…

We’re familiar with these facts:

  • Brown Pelican_DingDarlingNWR-FL_LAH_6701Brown Pelicans are saltwater birds, sticking to the coasts.
  • It’s only the male bird that sings.
  • Birds that migrate fly north in the spring and south in the fall.
  • Great Blue Herons eat aquatic insects, crustaceans, amphibians (such as frogs) and fish.
  • Males have the ornate feathers, while females tend to be drab and camouflaged.

We think we know. We think we understand. We’ve observed, conducted studies, collected facts. We think we have it right. And then Mother Nature confounds us.

Bird-a-saurs

Maiasaura_Nest_Natural_History_Museum_of_London-002
Maiasaur nest model; photo by Drow – GFDL, commons.wikimedia.org

A shallow, warm sea reflects sunlight in the distance. Here on the shore, a flat beach is backed by low hills. The hillsides are home to dozens of large, circular depressions approximately six feet across. These are nests, and the assemblage is a rookery.

Some nests still contain eggs, others have young in residence. The nestlings have been here a while, hanging out with the their parents, who in turn provide both food and protection. (more…)

Hide and Seek Birding

Long-billed Curlew_PadreIs-TX_LAH_0304Cryptic coloration—the ability of an animal to blend in with its surroundings—has always fascinated me. Cryptic coloration is the reason there are so many brown, striped sparrows. It’s why female ducks and other species lack the bright plumage of their mates. It’s why birds show regional differences. And it’s why I almost missed seeing the Long-billed Curlew shown here.

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