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Association of Field Ornithologists Home Founded in 1922 as the New England Bird Banding Association The Association of Field Ornithologists AFO is one of the worlds major societies of professional and avocational ornithologists dedicated to the scientific study and dissemination of information about birds in their natural habitats. AFO encourages the participation of avocational research and emphasizes the conservation biology of birds. Members of AFO receive Recent Posts Guest feature Why do Dusky Flycatchers nest in trees at high elevations. Guest feature Threats to waterbird nests identifying nest failures and daily survival rates for three endemic Hawaiian waterbirds Ornithological Council bimonthly news brief NovDec 2024 Latest Book Review Birds as vertebrates possess unique anatomical features such as feathers the ability to regurgitate pellets in some bird groups and the ability to lay eggs.