nd 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.

ACADIAN FLYCATCHER

_Empidonax virescens. Case 8, Fig. 60_

Throat white, upperparts bright, light
olive-green, without tinge of brown as in the
Alder Flycatcher.

_Range._ Eastern North America; rather southern,
nesting from Florida north to Connecticut and
Michigan; winters in the tropics.

Washington, common S.R., May 1-Sept. 15. Ossining,
common S.R., May 10-Aug. 27. N. Ohio, common S.R.,
May 4-Sept. 15. Glen Ellyn, not common S.R., May
6-Aug. 27, and probably later.

On the low-sweeping limb of a beech over a stream is an ideal site for
the frail nest of the Acadian. The bird is never found far from it and
its low-ranging habits permit us to see its characteristic markings and
hear its peculiar sudden, explosive little _pee-e-yuk_ and more commonly
uttered _spee_ or _peet_.

The creamy white, brown-spotted eggs are laid the latter part of May.

ALDER FLYCATCHER

_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 do