WARBLING VIREO


Vireo gilvus


Description:

This little bird is often seen rapidly moving around a tall shade tree in search of insects. Although still common, this birds number has decreased due to pesticides being sprayed on shade trees.


Appearance:

Pale gray or olive-gray head, back, wings, and tail. Dusky white underparts. Pale lores and white supercilium. Some have a pale yellow-green patch on flanks or belly. Blue-gray legs. Thick, dark bill with hooked upper mandible. Sexes similar. Juveniles may have yellowish-green flanks or belly and a faint buff colored wing bar. Adults have no wing bars. 4.75 to 5 inches in length.


Habitat:

Broadleaf woodlands up to 10,500.


Nesting:

3-4 white eggs with brown spots and a 12 day incubation period. Fledging occurs 16 days after hatching. The nest is a well formed pendant cup made from tree bark and plant down. The nest is usually built on a forked twig near the top of a tall tree.


Observed Locations:

  • SDSU, San Diego
  • "The Drip", Cabrillo National Monument, Point Loma





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The Drip

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The Drip

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