NORTHERN GRACE'S WARBLER 363 



one on a somewhcat higher pitch. Both songs were given five and six 

 times a minute." 



Winter. — Dr. Skutch contributes the following note: "The syca- 

 more warbler is a rare winter resident in Central America, infre- 

 quently recorded in both the highlands and the Caribbean lowlands. 

 Although Griscom states that in Guatemala it is a common winter 

 visitant, the statement scarcely seems supported by the paucity of 

 published records. Carriker knew of but one specimen taken in Costa 

 Rica. I have myself seen this bird only thrice during 12 years in 

 Central America. On January 22, 1935, I found one in a flock of 

 Townsend's and black-throated green warblers in the pine woods on 

 the Finca Moca, on the Pacific slope of Guatemala at 3,500 feet. My 

 one Honduran record is of a bird seen among the coconut trees by 

 the shore at Puerto Castilla, on January 27, 1931. Peters secured 

 a single specimen from a coconut palm near Tela, in the same general 

 region, on January 18, 1928. In Costa Rica, I found one of these rare 

 warblers in the garden of the hacienda Las Concavas, near Cartago, at 

 4,600 feet above sea-level, on November 3, 1935. 



"Griscom's record of the sycamore warbler at San Lucas, Guate- 

 mala, on August 7, indicates early arrival. The single published 

 Costa Rican date is of a bird collected by Underwood at San Jose on 

 September 17. The date of the spring departure appears to be quite 

 unknown." 



DENDROICA GRACIAE GRACIAE Baird 



NORTHERN GRACE'S WARBLER 

 HABITS 



This pretty little warbler was discovered by Dr. Elliott Coues (1878) 

 and named by him in honor of his sister and for whom, as he ex- 

 presses it, "my affection and respect keep pace with my appreciation 

 of true loveliness of character." Of its discovery, he states : "While 

 journeying through New Mexico, en route to Fort Whipple, Arizona, 

 in July, 1864, I found Grace's Warbler on the summit of Whipple's 

 Pass of the Rocky Mountains, not far from the old site of Fort 

 Wingate, and secured the first specimen on the second of the month 

 just named." He afterwards found it to be "the most abundant bird 

 of its kind, excepting Audubon's Warbler," in the pine forests on the 

 mountains of Arizona, and says that Henshaw found it to be "one 

 of the commonest of the summer Warblers in the White Moun- 

 tains. * * * His observations confirm my own in regard to the 

 pine-loving character of the birds ; he found them almost invariably in 

 coniferous forests, passing swiftly along the smaller branches of these 

 tall trees, or darting into the air to capture passing insects ; and even 



