Identification - The Warbling Vireo is about the size of a sparrow. It is the palest of the vireos but is still a fairly nondescript bird, being grayish-olive above and white below. In good light, it shows a rather inconspicuous white eye-brow stripe.
Morsels - The Warbling Vireo builds a basket-like nest suspended between the forks of a horizontal limb high in a deciduous tree. The three to five eggs are incubated by both sexes for 14 days. The incubating adult sits very snug on the nest with only its head and tail showing. Occasionally, when the male is incubating, it will sing. The young stay in the nest for about 13 days, then fledge, tended for another few weeks by both parents.