On 14 September 2018, I banded this Blue-headed Vireo. These vireos breed across Canada and in the eastern United State and winter in the southeastern United States, eastern Mexico and northern Central America. Little or nothing seems to be known about this bird’s physiology that favors such a northern winter distribution. Blue-headed Vireos appear to be increasing in numbers as abandoned fields revert to forests.
Blue-headed Vireos slowly move about forest branches as they snatch insects from leaves and twigs. Facilitating this foraging strategy, these vireos have relatively week jaw adductor muscles. This anatomy allows them to rapidly snatch their prey, often in flight (Morton and James 2014).
Blue-headed Vireos slowly move about forest branches as they snatch insects from leaves and twigs. Facilitating this foraging strategy, these vireos have relatively week jaw adductor muscles. This anatomy allows them to rapidly snatch their prey, often in flight (Morton and James 2014).
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