Vol i907 IV ] Wood, Autumn Warbler Migration. 329" 



Blue-headed Vireo (Vireo solitarius). — One adult male Oct. 9. First 

 seen in 1905 on Sept. 28 and common that date and on Oct. 5. Last seen 

 Oct. 8 — one specimen. 



Black and White Warbler (Mniotilta varia). — Less common Mum 

 usual; not more than five seen in one day and usually one or two. Only 

 adult male Sept. 15, but adult males are always rare in autumn. October 

 birds have all been adult and junior females. 



Golden-winged Warbler (Helminthophila chrysoptera). — Last seen 

 August 26, one bird. This was a male but whether adult or junior is un- 

 certain as it was not secured. Last seen August 20, 1905 — a fine adult 

 male. 



Yellow Warbler (Dendroica astiva). — Last seen August 17 — an 

 adult male. Six noted August 12, appeared to be adult males. Last seen 

 in 1905 August 19. That season I gave the species especial attention and 

 secured questionable birds — all adult males, however, from and inclusive 

 of July 30. 



Cerulean Warbler (Dendroica cerulca). Last seen August 26 — 

 an adult male. Last seen August 24, 1905 — twenty specimens, being 

 adults and juniors of both sexes but mainly the latter. 



Chestnut-sided Warbler (Dendroica pensylvanica) . — One specimen 

 Sept. 3 and one Sept. 23 — both junior males. Last seen Sept. 3, 1905 — 

 fifteen noted and all junior birds, the two secured being males. 



Ovenbird (Seiurus aurocapillus) . — Not taken after Sept. 5 and nothing 

 known as to age and sex of the later birds. Not taken in 1905 though 

 common. 



Northern Yellow-throat (Geothlypis trichas brachidactyla) . — Have 

 taken no adult males after mid-September and the very latest have been 

 junior females. 



Yellow-breasted Chat (Icteria virens). — Last seen July 29 — an 

 adult female in Grosse Pointe Township. Undoubtedly occurred later 

 but this was my last visit to that locality. More common in Gratiot 

 Township where at least six pairs nested in 1906. 



American Redstart (Setophaga ruticilla). — Last seen Oct. 7 — a 

 junior bird. The three noted Sept. 3 were adult males. Last seen in 1905 

 was an adult male Oct. 5, and in 1904 two adult males Oct. 2. Adult 

 males are not common during September. 



Nashville Warbler (Helminthophila rubricapilla) . — Five birds were 

 noted, all adults, the Sept. 23 specimen being a female and the remainder 

 males. Absent in autumn of 1905. 



Tennessee Warbler (Helminthophila peregrina). — The most common 

 species Sept. 5 to 15, and the first in total number of individuals for the 

 season. Met with eveiy day afield until Oct. 19. The Sept. 3 and 5 

 birds were mainly adults but the junior birds took the lead from Sept. 7 

 to October. The two Oct. 14 specimens were adult male and junior female. 

 More abundant than in 1905 and absent in 1904. 



Western Parula Warbler (Compsothlypis americana ramalina). — 



