BIRDS FROM COSTA RICA—WETMORE 71 
decurtatus as listed by Hellmayr * for they have the crown green, while 
in decurtatus it is gray. In the National Museum there is one skin of 
the green-crowned H. m. darienensis from Gattin, a locality where the 
eray-crowned H. d. pusillus is common. 
Family COMPSOTHLY PIDAE 
MNIOTILTA VARIA (Linnaeus): Black and White Warbler 
Motacilla varia LinNanus, Systema naturae, ed. 12, vol. 1, 1766, p. 333 (His- 
paniola). 
In the coffee plantation near the house at Hacienda Santa Maria I 
shot one on November 12 and saw another on November 14. 
VERMIVORA PEREGRINA (Wilson): Tennessee Warbler 
Sylvia peregrina Witson, American ornithology, vol. 3, 1811, p. 83, pl. 25, fig. 2 
(banks of the Cumberland River in Tennessee). 
Near Liberia this bird was common both in forests and in brush- 
grown pastures. Four specimens were taken on October 25 and 30 
and November 2 and 18. They were often found in little groups in 
bushes near the ground at the border of pasture lands. 
DENDROICA PETECHIA AESTIVA (Gmelin): Eastern Yellow Warbler 
Motacilla aestiva GMELIN, Systema naturae, vol. 1, pt. 2, 1789, p. 996 (Canada). 
Yellow warblers were common around Liberia, five specimens being 
taken on October 20, 22, 23, and 25. All these are the typical form. 
I saw several on November 18, but as none were taken I have no 
check on the subspecies present at that date. Several forms should 
occur in this region. 
DENDROICA PENSYLVANICA (Linnaeus): Chestnut-sided Warbler 
Motacilla pensylvanica LINNAEUS, Systema naturae, ed. 12, vol. 1, 1766, p. 333 
(Philadelphia, Pa.). 
On November 8 I shot an immature female from a treetop at the 
edge of heavy forest near the Hacienda Santa Maria. 
SEIURUS AUROCAPILLUS (Linnaeus): Ovenbird 
Motacilla aurocapilla Linnaxnus, Systema naturae, ed. 12, vol. 1, 1766, p. 334 
(at sea, about 30 miles off Hispaniola). 
At the Hacienda Santa Maria on November 5 I saw two and shot 
an immature male. Another secured on November 12 was prepared 
by Aguilar for the Museo Nacional in San José. 
OPORORNIS FORMOSUS (Wilson): Kentucky Warbler 
Sylvia formosa Witson, American ornithology, vol. 3, 1811, p. 85, pl. 25, fig. 3 
(Kentucky). 
40 Publ. Field Mus. Nat. Hist., zool. ser., vol. 18, pt. 8, 1935, p. 185. 
