_Empidonax flaviventris. Case 8. Fig. 61_
The entire underparts, including the throat, are
unquestionably sulphur-yellow. L. 5-1/2
_Range._ Eastern North America; nests from
northern New York and northern New England
northward into Canada; winters in the tropics.
Washington, rather common T.V., May; July 28-Oct.
6. Ossining, common T.V., May 17-June 4; Aug.
8-Sept. 20. Cambridge, T.V., sometimes rather
common, May 25-June 3; Aug. 28-Sept. 8. N. Ohio,
rare T.V., May 10. Glen Ellyn, rather rare T.V.,
May 20-June 5; Sept. 3. SE. Minn., common T.V.,
May 19.
Known chiefly as a not common migrant who visits our woods on his
journey to and from his northern home. He is a silent traveler and gives
no clue to his identity by calling or singing, but his underparts are so
much yellower than those of any other of our small Flycatchers that they
make a definite field character. Nests in coniferous forests on the
ground, laying 4 white, lightly spotted eggs in June.