CONTOPUS. 85 
parts during the breeding-season. The line of its southern migration does not appear 
quite clear. We certainly find it in the North Mexican State of Nuevo Leon and 
again on the islands of Cozumel and Ruatan and on the mainland of Honduras, but 
we have not met with it again till we come to Santa Marta in Colombia, where 
Mr. Simons obtained a bird undoubtedly of this species in 1879; thence it passes into 
Kcuador. It will be noticed that we have not included Guatemala or Panama as 
within the winter range of this bird, though specimens from those countries, which we 
now believe to belong rather to C. richardsoni, have been assigned by Mr. Sclater to 
C. virens. We think on the whole they are best placed here. Other Mexican localities 
are inserted on the authority of Sumichrast’s specimens ®®; and as regards Costa Rica, 
Hoffmann’s example, as determined by Prof. Cabanis °%, is the only record we have of its 
occurrence there. 
The habits of Contopus virens are fully given by American authors, with whom it is 
a very familiar bird. Its nest is described as a beautiful saucer-shaped structure, 
covered exteriorly with green and grey lichens, and usually secured to a thick horizontal 
branch of a tree. The eggs are pale creamy buff or creamy white, spotted, generally in 
a ring round the larger end, with rich madder-brown and lilac-grey. 
7. Contopus richardsoni. 
Tyrannula richardsoni, Sw. Faun. Bor.-Am. ii. p. 146, t. 46°; Salv. Ibis, 1866, p. 203°. 
Contopus richardsoni, Baird, Mex. Bound. Surv., Zool., Birds, p. 9°; Birds N. Am. p. 189°; Scl. 
& Salv. P.Z.S. 1864, p. 360°, 1879, p. 615°; Lawr. Ann. Lyc. N. Y. ix. p. 115°; 
v. Frantz. J. f. Orn. 1869, p. 308°; Salv. P. Z. S. 1870, p. 199°; Ridgw. Man. N. Am. B. 
p. 888°; Scl. Cat. Birds Brit. Mus. xiv. p. 239”. 
Contopus virens, var. richardsoni, Baird, Brew., & Ridgw. N. Am. B. ii. p.360; Lawr. Mem. Bost. 
Soc. N. H. ii. p. 887%; Bull. U. S. Nat. Mus. no. 4, p. 27; Henshaw, Rep. U.S. Geogr. 
Surv. West 100th Mer. v. p. 353"; Coues, Key N. Am. B. ed. 2, p. 440”. 
Contopus sordidulus, Scl. P. Z.S. 1859, p. 437; Scl. & Salv. Ibis, 1859, p. 122; Sumichrast, 
Mem. Bost. Soc. N. H. i. p. 557”. 
Contopus plebeius, Cab. & Heine, Mus. Hein. ii. p. 71” (?); Cab. J. f. Orn. 1861, p. 248”. 
Praecedenti similis, sed plerumque major, supra minus olivaceus : subtus pectore latiore fusco, abdomine flavido 
vix tincto. (Descr. exempl. ex San José, Costa Rica. Mus. nostr.) 
Hab. Western Nortu AMERICA, eastward to the great plains !°!2.—Mexico 1’, Mazatlan 
(Grayson 18), Presidio near Mazatlan (Forrer), Chilpancingo, Venta de Zopilote, 
Venta de Camaron and Acapulco in Guerrero (Mrs. H. H. Smith), Monterey 
(Couch *), Vaqueria in Nuevo Leon (F. B. Armstrong), Sierra Madre above Ciudad 
Victoria (W. B. Richardson), Chimalpa (Ferrari-Perez), State of Vera Cruz (Sumi- 
chrast 1°), Orizaba (Botteri !!), Tapana, Tehuantepec city (Sumichrast 1+); Britisa 
Honpuras, Orange Walk (Gawmer); Guatemata 17 (Skinner ®), Coban, Duefias, 
Retalhuleu (0. S. & F. D. G.) ; Costa Rica” (Hoffmann *"), San José (Frantzius 78), 
Frailes, Barranca (Carmiol"), Irazu (Rogers); Panama, Volcan de Chiriqui®, 
