Great Black-backed Gulls have a reputation as serious predators of other birds like puffins, grebes, and songbirds as big as a grackle. Just over a century ago, these birds were nearly wiped out by feather hunters and egg collectors. And though their populations recovered with help from environmental protections, Great Black-backed Gulls are in decline once again — and scientists are still trying to figure out why.More info and transcript at BirdNote.org.Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free listening and other perks. BirdNote is a nonprofit. Your tax-deductible gift makes these shows possible.  Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

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