144 Messrs. A. and E. Newton's Observations 
f 16. Prairie Warbler. Dendrceca discolor (Vieill.), Baird; 
Sylvia minuta, Wils. pi. 25. fig. 4. S. discolor, Aud. pi. 14. 
Leaves the island for a few months in summer, but is rather 
common during the time it is resident. 
“ I observed this bird last on March 27th, and saw it again 
Sept. 10th."—E. N. 
17. Cape-May Warbler. Dendrceca tigrina (Gm.), Baird; 
Sylvia maritima, Wils. pi. 54. fig. 3 ; Aud. pi. 414 ; d'Orb. Voy. 
de Pile de Cuba, Ois. pi. 10. Certhiola maritima , Gosse, Ill. B. 
Jam. pi. 17. 
Not at all common ; only a winter visitant, and leaving earlier 
than any other of the migrants observed by us, having, it would 
appear, a longer journey than most of them to perform. 
“ I am compelled to differ from Mr. Gosse (B. Jam. p. 87) 
in the decision he has arrived at about this bird being a Cer¬ 
thiola. When I first arrived in St. Croix I had the opportunity 
of observing its manners for several days ; and they were alto¬ 
gether those of a Dendrceca. I further took particular care, not 
only to examine while fresh, but also to preserve, the tongue 
of a male which I shot on March 19th, 1857. This is now be¬ 
fore me; and I am able to compare it with the tongues of Cer¬ 
thiola, Mniotilta, and Dendrceca cestiva. That of Certhiola is, 
besides being penicillate, deeply bifid. Now there is nothing of 
this conformation in any of the others. Of these, it is true that 
D. tigrina has the most bushy pencil of hairs at the tip; but 
Mniotilta and Parula come very near it in this respect : and it 
is also true that D. cestiva differs from these three in having a 
horny point. If any deduction is to be drawn from the charac¬ 
ters of the tongue, D. tigrina must be (and very likely should 
be, on other grounds) removed from the genus Dendrceca, but 
certainly not placed in Certhiola.” —A. N. 
18. Redstart Flycatcher. Setophaga ruticilla , Bp.; Mus- 
cicapa ruticilla, Linn.; Wils. pi. 6. fig. 6 ; Aud. pi. 40. “ Red¬ 
start." 
This beautiful species, having at first sight so much the ap¬ 
pearance of the European Redstart [Ruticilla phcenicura, Bp.), is 
very common in the spring of the year, and especially seen about 
