Birds

Live interview on Chicago's PBS affiliate: "A Sky Full of Cranes"

Last night I was a guest on "Chicago Tonight," a live nightly news program that is broadcast on Chicago's PBS affiliate, WTTW. I was talking about the wonderful Sandhill Crane migration that the Chicago area experienced over the last couple of days, with thousands pouring through the area, including many right over and around downtown. It's been great publicity for birds. My interview was accompanied by the beautiful photographs that Jerry Goldner took of the migrating cranes.

A Cassin's Sparrow meets its end a long way from home

Every day during fall migration, the Chicago Bird Collision Monitors deliver to the Field Museum a bag of birds that died flying into windows in the loop as they tried to make their way south to their wintering grounds farther south. These salvaged birds provide a critical component of the museum's bird collection, specimens that can be used by researchers for generations to come to learn about many aspects of our area's birdlife.

How many trees are there in the Amazon?

A couple of weeks ago some colleagues and I wrote a paper in Science reporting some new findings on Amazonian forests. Some of the findings are actually just numbers, and one of those numbers is really big. It's the number of trees we think probably grow in the Amazon, and it's 390 billion.

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