150 Grundtvig—On the Birds of Shiocton , Wisconsin. 
longs to Canadian fauna, is in migration time common in Wis¬ 
consin. King has not met with it; but Cooke has seen it in 
Jefferson Co., May 26-29. I cannot deny that it may be found 
at Shiocton, especially as it belongs to the latest migrating 
warblers. G. Philadelphia (Wils.) is said to belong to the 
Canadian fauna, but Cooke gives it as breeding in Jefferson Co. 
It seems remarkable that it was not seen at Shiocton. Moreover 
it was not met with by King either. 
Icteria virens (Linn.) belongs to the Carolinian fauna. It 
breeds in Jefferson county (Cooke), but is not found at Shiocton. 
Sylvania mitrata (Gmel.) belongs to the Carolinian fauna, but 
was met with at Racine (Hoy). 
162. Sylvania pusilla (Wils.). xxx M. $ (5) L. 113-126. 
E. 164-173. W. 52-63. T. 29-49. B. 8-9. This species was 
seen very rarely, and always singly, either by itself or in war¬ 
bler-flocks. No female was observed. King has met this spe¬ 
cies only once, but Cooke saw flocks in Jefferson county May 12- 
29, 1883. In 1882 I saw males of this warbler May 12, 14, 18, 
22-25, and 28. The largest number seen in one day was four, 
which were found May 23 in four separate places. In 1883 
seen May 18, 19 and 20. The last day two were seen, on the 
other days one. 
163. Sylvania canadensis (Linn.), xxx M. $ (4) L. 126- 
133. E. 189-198. W. 63-66. T. 54-57. B. 11. $ L. 130. 
E. 189. W. 6. T. 50. B. 11. In 1882, first male seen May 
10, two on the 11th and two on the 18th. The 19th, very nu¬ 
merous, hardly exceeded by Dendroica maculosa . The 20th, 
more numerous than any other warblers. Tolerably plenty the 
next three days. The last two seen May 31. First female 
probably the 21st. In 1883, first male in a large warbler-flock 
May 18. None the day after. 20th, in the morning three males 
in a warbler-flock. In the evening several. More, 21st and 
22nd. None, 23d. Some of both sexes, 24th and 26th. One 
male the 27th. 
164. Setopliaga ruticilla (Linn.). XX It is undoubtedly 
the most numerous breeding w~arbler in the region. Nests both 
in swamps and woods, but generally prefers the vicinity of the 
rivers. Of 38 nests, 23 were placed over the water and were 
