_Empidonax trailli alnorum. Case 8, Fig. 62_
Larger than the Least Flycatcher, but resembling
it in having the back olive-brown instead of
olive-green as in the Acadian and Yellow-bellied
Flycatchers. L. 6.
_Range._ Eastern North America; nests from
northern New Jersey (locally) and mountains of
West Virginia to Canada; winters in the tropics.
Washington, irregularly common T.V., May 8-May 28;
Aug. 16-Sept. 17. Ossining, rare T.V., May 19-May
31; Aug. 29. Cambridge, rare T.V., May 28-June 6;
Aug.; occasional in summer.
Traill's Flycatcher (_E. t. trailli_), a slightly
browner bird is the Mississippi Valley form. N.
Ohio, common S.R., May 7-Sept. 10. Glen Ellyn,
quite common S.R., May 14-Sept. 19. S.E. Minn.,
common S.R., May 6-Aug. 10.
A rare recluse of the alders who, traveling silently between his summer
and his winter homes, makes few friends among men. Dwight describes its
call note as "a single _pep_," and its song as _ee-zee-e-up_, resembling
that of the Acadian. The bird places the nest low down in the crotch of
one of the bushes among which it lives and lays 3-4 white, brown-spotted
eggs in June.