UC Berkeley’s peregrine falcon chicks determined to be male

Photo of young falcons
Sean Peterson/Courtesy
During Banding Day on May 12, UC Berkeley’s three new peregrine falcons were all determined to be male. The gender of peregrine falcons is based on their leg width, with male peregrine falcons being about two-thirds the size of females.

On May 12, UC Berkeley’s three new peregrine falcons were all determined to be male during Banding Day. Each chick received one band from the national Bird Banding Laboratory with a unique nine-digit number, along with a four-digit visual identification band that allows people to more easily identify the birds from a distance. 
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