194 
104. Dendroica striata (Forst.) Black-poll Warbler. 
This is the bird which brings up the rear guard of the great army of warblers 
during their northward flight, and was first seen this spring on May 19, being 
“quite common for a few days and then disappearing. It prefers the tops of the 
taller trees, and may be seen slipping along the branches much after the fashion 
of the Black and White Creeper, and occasionally uttering its rather weak note, 
which somewhat resembles that of the Chipping Sparrow, and is very deceptive 
as to telling the whereabouts of the bird. 
105. Dendroica blackburnie (Gmel.) Blackburnian Warbler. 
An abundant migrant. I have first noted it on April 22, though it does not 
become common until during the first week in May, and I have last seen it on 
May 19. The females do not become common until towards the middle of May. 
During the fall migrations it arrives about the 6th of September, and I have ob- 
served it as late as October 13. 
106. Dendroica virens (Gmel.) Black-throated Green Warbler. 
An abundant migrant, its migration schedule conforming to that of biack- 
burnie, though perhaps more individuals of blackburnie linger later during the 
spring migrations than does virens; and this may also be true of the fall migra- 
tions. The larger number of these birds which one sees during the fall migrations, 
being birds of the year, have not yet attained to the exquisite loveliness of the 
adult males, and even the adult males lack to a great extent the beauty of plumage 
which characterizes them during the spring migrations. The black of the throat 
is partially concealed (especially in the case of birds of the year) by an intermix- 
ture of white, which gives the whole throat and fore parts a grayish cast. 
107. Dendroica vigorsii (Aud.) Pine Warbler. 
A rare migrant. Two were noted during the spring of 1897, on April 25 
and 26. 
108. Dendroica palmarum (Gmel.) Palm Warbler. 
A moderately common, or rather uncommon, migrant; more frequently to 
be observed during the spring migrations. Was first seen this season on April 22 
and last seen on May 16. During the fall migrations it may be looked for during 
the last of September or first of October. 
109. Seiurus aurocapillus (Linn.) Oven Bird. 
A common migrant; has not been found to breed. Arrives during the first 
week in May. During the fall migrations I have first observed it on September 7. 
