30 REVIEW OF AMERICAN ‘BIRDS. [PART I. 
feathers of the top of head are rather darker than the edges, though 
almost inappreciably so, and not imparting a general dusky appear- 
ance. The chin and throat are white, streaked with ashy brown. 
The jugulum and breast are pale yellowish buff; the axillars, inner 
wing coverts and sides of the breast similarly, but rather more de- 
cidedly colored. The belly and edges of the crissal feathers are 
white, the hinder parts of the flanks ashy. There is a distinct 
whitish stripe from the lores over, and a quarter of an inch behind 
the eye; the lower eyelid is also white. The tail feathers are 
worn, but there is an indication of a narrow white tip. The 
feathers of the jugulum, especially of the sides, are tipped with 
ashy like the back, as in immature specimens of 7. migratorius. 
The greater wing coverts are tipped with dull white. The bill is 
yellowish ; the upper mandible and the tip of lower tinged with 
dusky. The feet are pale brown. 
The length cannot be given accurately, as the skin is much drawn 
up. The wing, however, measures 5.10 inches, its tip reaching 1.40 
beyond the longest secondary; tail, 4.10; tarsus, 1.20; middle toe 
and claw, 1.07; exposed portion of culmen, .92; from tip to open 
portion of nostrils, .60. 
The specimen with a general resemblance to an immature 7’. 
migratorius (especially the western variety), in the white superciliary 
streak and general markings, is much lighter beneath than in any of 
the many skins of 7. migratorius before me; there being none of 
the dark chestnut or cinnamon shade, but rather a light buff; the 
belly and flanks are much more purely white. The superciliary 
stripe extends farther behind the eye; indeed in most specimens of 
migratorius the white is nearly confined to the eyelids. The bill 
and wings are rather longer than usual in migratorius ; the middle 
toe, on the other hand, appears shorter. 
The specimen lacks entirely the reddish-brown back of 7. flavi- 
rostris, in which latter also the breast and sides are like those of 
migratorius. The white of the belly is even more extended. It 
has a whitish superciliary streak, entirely wanting in flavirostris. 
The upper part of the jugulum is not streaked. The wings are 
longer and more pointed, and the primaries extend considerably 
farther beyond the secondaries. The bills are of the same size ; the 
tarsus is 1.20, or longer than the middle toe and claw; while in flavi- 
rostris (although a larger bird) the tarsus is only 1.00, and shorter 
than the middle toe and claw (1.20). 
Upon the whole, it may be that the specimen before me represents 
an abnormal plumage of J. migratorius; but its rather different 
