36 ARKIV PÖR ZOOLOGI. BAND 14. N:0 25. 



dimensions are very similar to the corresponding ones for 

 A. ventralis. 



There is also no doubt, t hat t hese two races really are 

 nearly related. A. erythrocnemis is recorded from Brazil and 

 Bolivia, but it is uncertain, whether it is an eastern race or 

 not. Its occiirrence in Ecuador in practically the same district 

 as A. ventralis is of interest and arouses easily the suspicion 

 that it perhaps only is a light phase of this species just as 

 »nigroplumbeus » represents a dark phase of the males of 

 the same. For such a supposition speaks the fact that both 

 have about the same dimensions, rufous thighs (except in 

 the darkest specimens of »nigroplumbeus») etc. 



Accipiter bicolor schistochlamys Hellmayr. — 1 (^ 7io' 

 Alonguinche south of Mojanda, 9000 f.; 1: (^ 7n' ^^^^ Gualea, 

 5000 f. The latter has a very interesting transitory plumage 

 with partly dark brown rufous -tipped, partly slate-coloured 

 feathers, 



Accipiter pileatus Temm. — I ^ juv. ^Y?? road to Gualea, 

 6000 f. 



It is with a certain hesitation that we have named this 

 bird as above, but in accordance with the literature, there 

 is no other possibility as the under side of the specimen is 

 buffy white, not »rich fawn colour». 



Geranoaetus melanoleucus Vieill. — \ ^ -"/g? 1 ? Ve? La 

 Carolina; 1 c^ juv. & 1 ? juv. ^V^, 1 ? V^i, 1 S ad. "/g, Pichincha 

 11000—12000 f.; 2 $? juv. 7ii, Tucubamba, 6 miles south of 

 Quito, 9500 f.; \ ^ juv. ^V^, Chaupicruz, 9400 f.; 1 c^ ad. ^Vg, 

 M:t Corazon, 11000 f.; 1 juv. 7?? San Bartolo, 3 miles south 

 of Quito, 9400 f.; 1 sp. unsexed ^^U above Cotocallo, 10000 f. 



Consul Söderström has written on the label of a specimen 

 collected 1909, that this species formerly was very common 

 around Quito, but that it already then had become rare. 



Buteo erythronotus peruviensis Swann. — I ^ ^Vs» 1 ? 

 ^/lo, 1 semiad. ^711, Pichincha, 11—12000 f.; 1 (c^) $ semiad. 

 Vs, M:t Atacazo, south of Quito, 11000 f.; 1 c^? juv. 7ii above 

 Pomasqui 9000 f.; 1 young bird with the wings not yet fully 

 developed 7^, Western Mojanda, 9000 f. 



The length of wing of the fullgrown birds in same order 

 as they are recorded above: 357, 369, 378, 402 mm. 



