Grundtvig on Warblers of Wisconsin. 
69 
1883.] 
Helminthophila peregrina ( Wils.) Cad. May 19 a single 
male was taken by S. W. Willard in a thicket east of Wolf 
River. The 21st both sexes were very numerous, ranking in 
numbers with D. striata. After this the number diminished 
somewhat, but the species was still quite common until the 
27th, when it suddenly disappeared. 
Dendrceca aesfciva ( Gm .) Bd. A single male was taken 
May 3. The 4th it was noticed intermingled with many flocks, 
and on the 5th it outnumbered all its associates. May 14 they 
were everywhere unusually abundant, exceeded in numbers only 
by S. ruticilla and D. fennsylvanica. They breed here abund- 
antly. The first egg was found June 2. May 12 I. shot a male 
that had the crown curiously striped with several rich orange- 
brown marks. 
Dendrceca virens (Gm.) Bd. Several males were noticed 
May 4. After that date and until the 22nd it was occasionally 
seen in the other flocks, May 8 being the only day it was quite 
common. The 7th, 9th, and from the 13th to the 18th, none 
were noticed. 
Dendrceca caerulescens (Z.) Bd. May 8 a few males were 
seen ; the numbers then gradually increased until the nth, when 
the first females were noticed. May 12 none were observed, but 
after that date it was occasionally seen until the 23rd. May 31 a 
single male was noticed. 
Dendrceca coronata (Z.) Gr. The first specimen was 
taken April 5 ; single ones were also taken the 10th, 12th, 14th 
and 1 8th. April 2r the first flock arrived. From this date the 
number increased rapidly. April 30 other Warblers were found 
intermingled throughout the flocks, and by May 8 the number 
was quite insignificant ; from the 9th to the 20th only a few sin- 
gle ones were observed. Undoubtedly this species was the most 
abundant of all the Warblers. 
Dendrceca blackbnrniae ( Gm.) Bd. The arrival of this 
Warbler was indeed very singular. The first one, a male, was 
noticed May 3. The 4th, 5th, and 6th a few were seen, but the 
7th none were to be found ; the 8th, however, enough of them 
had arrived to far outnumber the other Warblers then present, 
but the very next day not one was seen. Excepting the 16th 
and 17th, it was noticed each day from the 9th until the 23rd, 
when it disappeared. 
