124 MNIOTILTID^. 



Birds' rest on peculiarities of colour. They seem fairly natural; and we adopt them 

 here, 



A. Cauda macula magna flava inpogonio interno autflavo late intus marginata. 

 1. Dendrceca sestiva. 



Motacilla (estiva, Gm. Syst. Nat. i. p. 996'. 



Rhvmamphus mtims, Scl. P.Z. S. 1856, p. 141 ^ 1857, p. 202 ^ Cab. J. f. Orn. 1860, p. 326*. 



Dendrceca mstiva, Scl. P. Z. S. 1859, p. 363 ^ Scl. & Salv. Ibis, 1859, p. ir ; P. Z. S. 1864, p. 347^ 



1870, p. 836 ^ 1879, p. 494'; Cassin, Pr. Ac. Phil. 1860, p. 191"; Lawr. Ann. Lye. N. Y. 



vii. p. 322", viii. pp. 174 '^ 179", ix. pp. 94", 200"; Mem. Bost. Soc. N. H. ii. p. 269"; 



Bull. U.S. Nat. Mus. no. 4, p. 15 "; Baird, Rev. Am. B. i. p. 195 "; Salv. P. Z. S. 1867, 



p. 136", 1870, p. 183"°; Sumiclirast, Mem. Bost. Soc. N. H. i. p. 547"; v. Frantz. J. f. 



Orn. 1869, p. 293^2. Baird, Brew. & Ridgw. N. Am. B. i. p. 222^= ; Coues, B. Col. Vail. 1. 



p. 252^^ 



J flava, dorso viridescente, gastraeo toto castaneo striato ; alls et cauda fuscis, extus et intus flavo limbatis ; rostro 

 plu'mbeo, pedibus cameis. Long, tota 4-7, alae 2-5, caudse 1-9, rostri a rictu 0-5, tarsi 0-7. (Desor. maris 

 ex DueSas, Guatemala. Mus. nostr.) 



$ mari similis, sed striae corporis subtus absunt. (Descr. feminaj ex Retalhuleu, Guatemala. Mus. nostr.) 



Hob. North Ambkica generally ^s. — Mexico, Mazatlan {Grayson ^^), Colima (Xantus ^^}, 

 Jalapa and San Andres Tuxtla (Salle ^), Jalapa {de Oca% Orizaba {Sumi- 

 chrast ^^), Merida, Yucatan (SchoU ^^), Barrio, Chihuitan, Guichicovi, and Santa 

 Efigenia {Sumichrad^''); Guatemala^, Duefias, Retalhuleu, San Geronimo, Tactic, 

 Coban, Cahabon {0. S. & F. D. G.) ; Saw Salvador, La Libertad (J. M. Dow i^). 

 La Union (0. S.); Honduras, San Pedro (G. M. Whitely^) ; Nicaragua, Greytown 

 {Holland ^^) ; Costa Eica ^, San Jose {v. Frantzius ^'^, Carmiol i*), Candelaria 

 Mountains («. i^ffw^zms 22); V k'SKM.k,T)siy\d. {Bridges^, Hicks '^^), Bugaba, Cordillera 

 del Chucu, Chitra, Calovevora, Calobre, and Santa Fe {Arce ^^ ^^), line of railway 

 {M'Leannan^^ ^), Turbo {W. S. Wood ^°). — Colombia^ Ecuador, Guiana, Trinidad. 



The Summer Warbler or Summer Yellow-bird, by which names this species is known 

 in North America, is one of the commonest of Mniotiltidse, and in the summer season 

 spreads itself throughout the whole North- American continent, and breeds over an area 

 extending from the confines of the Arctic Ocean to the frontier of Mexico, and from the 

 Atlantic to the Pacific Oceans ^3. During the winter months it passes southwards to 

 Mexico, Central America, and the whole of the northern portion of South America from 

 Guiana to Ecuador, and is one of the most abundant of its family in Guatemala and 

 elsewhere at this time of year, ranging from the sea-level to a height of 5000 or 6000 

 feet. D. (estiva has not yet been detected in any of the West-India Islands (except 

 Trinidad), not even as a bird of passage, though many of these islands lie directly in the 

 path the birds of the Eastern States must take when flying to the northern part of 

 South America. We can only suppose that the presence in these islands of a number 



