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A variety of bird beaks

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Birds have evolved a variety of beak shapes for different types of food gathering. (a) Hyacinthe macaw (Anodorhynchus hyacinthinus)—cracking. (b) White pelican (Pelecanus onocrotalus)—scooping. (c) Verreaux's eagle (Aquila verreauxii)—tearing. (d) American avocet (Recurvirostra americana)—probing. (e) Lucifer hummingbird (Calothorax lucifer)—nectar feeding. (f) Roseate spoonbill (Ajaia ajaia)—sieving.
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