“BIRDS FROM COSTA RICA—-WETMORE 47. 
of Liberia. I shot two here on October 27 and two more on October 
31. Three of these are young males with a few metallic red feathers 
appearing on the throat. 
FLORISUGA MELLIVORA MELLIVORA (Linnaeus) 
Trochilus mellivorus LINNAEUS, Systema naturae, ed. 10, vol. 1, 1758, p. 121 
(Guiana). 
On October 26 near Liberia I secured a male of this hummingbird, 
not quite adult, from a shaded perch along a roadway at the border 
of a bush-grown field. 
CHLOROSTILBON CANIVETII SALVINI (Cabanis and Heine) 
Chlorolampis Salvini CaBpanis and Hinz, Museum Heineanum, pt. 3, 1860, 
p. 48 (Costa Rica). 
Near Liberia I secured specimens of this hummer on October 21, 
22, and 31 at the edge of heavy woodland. They were quick, alert, 
and difficult to shoot. On the Hacienda Santa Maria I found them 
occasionally in the coffee plantation near the house, or in the groves 
of gallery forest below, taking a male November 13. A female taken 
on October 21 was laying. | 
While I have followed currerit usage in listing salmni as a race of 
canivetii it appears to me that the shorter-tailed forms, including 
saluint, may be specifically distinct from the more northern ones, 
canivetii, auriceps, and forficatus, the latter having decidedly longer, 
more deeply forked tails, with the elongated feathers appearing 
narrower. 
ANTHRACOTHORAX. PREVOSTII GRACILIROSTRIS Ridgway 
Anthracothoraz prevosti gracilirostris RipGwAy, Proc. Biol. Soc. Washington, vol. 23, 
Apr. 19, 1910, p. 55 (Bolsén, Costa Rica). 
The only slender-billed mango seen was a female shot on October 
30, 1940, at the edge of heavy woodland near Liberia. 
AMAZILIA RUTILA RUTILA (Delattre) 
Ornismya rutila DeLATTRE, Echo du Monde Savant, ser. 2, vol. 7, No. 45, June 15, 
1848, col. 1069 (Acapulco, Guerrero, México). 
The cinnamon hummingbird was fairly common near Liberia 
through groves adjoining cultivated fields. Two males taken on 
October 28 are decidedly greener above than any others in the 
National Museum collection, owing apparently to fresher plumage. 
HYLOCHARIS ELICIAE (Bourcier and Mulsant) 
Trochilus eliciae BourciER and Mutsant, Ann. Sci. Phys. Nat. Lyon, vol. 9, 
1846, p. 314 (type locality not known). 
Near Liberia Elicia’s golden-tailed hummingbird was more common 
than other hummers at this season. Those taken include a female 
