COLLECTION OF HUMMINGBIRDS— OBERHOLSER. 
311 
They frequent the depths of the forests around Santo Douiiugo, where they feed on 
the red liowers of a parasitical plant growing high up on the tree trunkn. Conse- 
cpiently it was always necessary to use a gnn to shoot these birds. 
GLAUCIS HIRSUTA AFFINIS (Lawrence). 
67o((r/.sw////»/> Lawkexck, Ann. N. Y. l.yc, Nat. Hist., VI, 1858, p. 2<U. 
One adult nuile, from Napo village, ea.st Ec-uador. 
Although in color G/auci« hirsuta varies so much iiidi\-idually that 
it seems impossible to make out an}' geographical forms, there is 3'et 
such a great difference in size between specimens from eastern Brazil 
and those from Costa Rica that at least two sul)species may easily be 
recognized. Birds from eastern Brazil, Trinidad, Tobago, and Gre- 
nada agree in being of very large size; while those from Nicaragua 
and Costa Rica are the smallest. A single individual from Peru, and 
the above-mentioned one from Ecuador are practically identical with 
those from Costa Rica. A series of specimens from central and north- 
ern Colombia seems to show intermediate tendencies, though much 
nearer this than to the tj'pical form from eastern Brazil. 
The original description of Glands hirsuta ^ was based undoubted!}' 
upon the Brazilian bird, so that the form ranging from Grenada to 
.•southeastern Brazil nmst be called Glaucls hirsuta hirsuta. For the 
western race, occurring from Nicaragua to Peru, the earliest available 
name appears to be Glaucis affinis Lawrence.' based on the bii'd from 
Ecuador, and it should therefore now stand as Glaucis Idrsuta ajjinis. 
The bird described by Boucard as Glaucis columhiana^^ from the Rio 
Dagua, Colombia, is undoubtedly the same, as may easily be seen by. 
reference to his original description. No importance can be attached 
to the uniform rich cinnamon color of the lower surface in his speci- 
mens, for such a condition of plumage occurs by no means infrequently 
throughout the range of Glaucis hirsuta. 
The difference between the two races is sufficiently emphasized by 
til':" followino- measurements: 
Name. 
Sex. 
Locality. 
Wing. 
Tail. 
Exposed 
eulmen. 
Male ? . - 
Male?.. 
Male ... 
Male ... 
Bahia, Brazil 
66 
.,65 
.53 
53 
41.0 
41.0 
33.0 
32.5 
30.5 
Do 
... .do 
30.0 
Escondido River, Nicaragua 
Napo village, Ecuador 
28.0 
Do 
30.0 
The sole specimen of this species was shot under the eaves of an Indian hut at a 
\ illage near the headwaters' of the Napo, where it was searching for insects. 
^ Trochibis hirsutus Gme\m, Syst. Nat., I, 1788, p. 490. 
2 Ann. X. Y. Lye. Nat. Hist.,Vl, 1858, p. 261. 
^Genera Hummingbirds, 1895, p. 402. 
