I58 BIRDS OF THE REPUBLIC OF PANAMA PART 2 



Veragua, by Arce, and kindly lent to me by Mr. Salvin." This bird, 

 therefore, is the type specimen. When the Saivin collection was pre- 

 sented to the British Museum (Natural History), the skin was cata- 

 loged as no. 88.7.20.56. It is labeled only Calobre, Veraguas, 1869, 

 E. Arce, 2594, without indication of sex. Its measurements are as 

 follows: wing 172, tail 97, culmen from cere 17.2, tarsus 38 mm. 

 It is one of the brighter brown individuals of this species. This has 

 been the only record for western Panama until 1965, when E. Tyson 

 collected 2 on the west slopes of Volcan Baru on February 19 and 23 

 at about 2,250 meters elevation. I secured another on the same side 

 but lower down at 1,980 meters on March 5. These birds were taken 

 in mist nets. Beyond Panama to the west this owl ranges in the 

 higher mountain forests of Costa Rica. 



Those seen from Darien do not differ in color or size from the birds 

 examined from western Panama and Costa Rica. 



LOPHOSTRIX CRISTATA (Daudin) : Crested Owl; 

 Buho Penachudo 



Figure 24 



Strix cristata Daudin, Traite Orn., vol. 2, 1800, p. 207. (Guiana.) 



A large owl, dark to medium dark in color, with long, prominent 

 feather horns, that when not erect form a distinct white or buffy 

 white streak along the side of the crown. 



Description. — Length 360-390 mm. Two color phases, one rather 

 uniform dark brown, the other paler, buffy brown. Dark phase : adult 

 (sexes alike), above sooty brown, paler, more cinnamon-brown on the 

 wings, mottled finely throughout with dark cinnamon and rufous; 

 scapulars with partly concealed bars and spots of white to buff, in the 

 form of irregular streaks ; wing coverts spotted and barred with 

 white and buff ; primaries and secondaries barred with cinnamon-buff 

 and white ; tail barred narrowly with cinnamon-buff and white, less 

 prominently on central feathers and toward tip ; slender feathers at 

 base of bill white, with black shaft lines and tips, continued in a 

 prominent white or buffy stripe over the eye to the long feather horns 

 where it is mixed with dark brown ; feathers of face rufous at base, 

 black at tip; chin white, center of upper breast basally white, this 

 partly concealed; neck, breast, abdomen, and sides buff to buffy 

 white, barred narrowly with dark brown and fuscous to produce a 

 mottled appearance ; lower abdomen, under tail coverts, tibia and 

 tarsus buff, the legs in some barred indistinctly with blackish brown, 

 in other individuals plain ; under wing coverts buff, with some mottling 



