1 8 BowDiSH, Birds of Porto Rico. ]^'^ 



and at Mayaguez. First observed in 1899 on Jan. 17, last seen Feb. 18. In 

 1900, first seen Feb. 3 ; last, no record. In 1901, first, Oct. 10; no other 

 record. 



77. Compsothlypis americana. Parula Warbler. — The most com- 

 mon of the warblers in winter. In Vieques particularly abundant. Win- 

 ter of 1899-1900, first, Jan. iS; last, April 8. I also saw a bird June 12, 

 1900, which at close quarters I was sure was this species, but did not 

 secure it. 1900-01, first, Nov. 5 ; last, Feb. 23 ; 1901-02, first, Oct. 25. 

 Have found seeds in the stomach of one of these birds. 



78. Dendroica tigrina. Cape May Warbler. — One noted at Maya- 

 guez, Oct. 30, 1901. 



Dendroica petechia bartholemica. Porto Rico Yellow Warbler. — 

 Apparently the main point of difference between this form and D. cestiva 

 is that there is more rufous on the crown of the present bird. The 

 rufous streaks on the sides and breast are perhaps a little more pro- 

 nounced. They are very abundant in the mangrove swamps about San 

 Juan Bay. I also found a few in a low, bush-grown, rather swampy 

 cocoanut grove near Mayaguez. The song and notes seem exactly like 

 those of D. (Estiva. 



I never found a nest, but a female shot April 8, indicated that breeding, 

 if not already begun, would soon commence, as was also indicated by a 

 specimen taken April 22. Stomachs examined contained insect food only, 

 chiefly beetles ; in one a green beetle about one eighth of an inch long 

 predominating. A wounded bird kept for a short time ate hard-boiled 

 t.^ readily. 

 ^ 79. Dendroica coronata. Myrtle Warbler. — Though abundant in 

 Cuba in winter, this bird is apparently not so in Porto Rico. At Vieques 

 I shot a male Jan. 22, 1900, and another Jan. 30. The contents of the 

 stomach of the first was insects, of the second, good-sized seeds. In Cuba 

 the larger proportion of the food is seeds. 



80. Dendroica maculosa. Magnolia Warbler. — Apparently far 

 from an abundant winter visitant. I noted one in a tree in a small park 

 in the city of San Juan, Sept. 26, 1899, and was surprised to see it so early. 

 I also shot a male from a tree beside a street in Mayaguez, Dec. 26, 1900. 

 Stomach contents, beetles about one eighth of an inch long. 



81. Dendroica adelaidse. Adelaid Warbler. — This species, peculiar 

 to Porto Rico, I met with only in the vicinity of Aguadilla, and there in 

 no great numbers, chiefly about a glade between two hills, where the nest 

 of Loxigilla fortoricensis was taken. May 18, 1900, I shot two males, 

 their condition indicating that they were nesting. The stomach of one 

 contained small caterpillars, that of the other, spiders; a female and juve- 

 nile male, shot June 15, contained small insects. This young one had not 

 been long out of the nest. Aug. 5, male and female, stomach contents, 

 small insects. They have a warbler-like chip, but I have never heard a 

 smig. 



Y%2. Dendroica palmarum. Palm Warbler. — Not a very common 

 winter visitant, according to my experience. Shot a male in a mangrove 



