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Posted by Brian Rapoza on 15:24:51 08/11/07
In Reply to: Questions about Anis and a safety reminder posted by tricia
Sibley (2000) indicates that adult Smooth-billed Anis come in both small-billed and large-billed varieties, with the large billed variety being less common than the small-billed. Juvenile anis also have a smaller bill. Handbook of the Birds of the World, Volume 4 (1997) indicates that male and female anis differ only in weight, with males averaging 115 grams, females 95 grams.
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