2C0 BIRDS OF BRITISH G LIANA. 



Range in British Guiana. Berbice River {McConnell collection); 

 Bartica ( IT Idtelij). 



EHndiniital Range. South America to Paraguay and Central 

 America to Guatemala. 



Habits. Unrecorded in British Guiana. 



104. Spizaetus tyrannus. 

 Tyrant Hawk-Eagle. 



Fnho tyrannus Wied, Reis. Bras. i. p. 300, 1820 (Rio Btlinonte). 

 iSljiza'etus tyranmis Sharpe, Cat. B. Brit. Mus. i. p. 264, 1874 (Derae- 



rara) ; Quelch, Timehri (2) vi. p. 150, 1892 ; Brabourne & Chubb, 



B. S. Amer. i. p. 71, no. tioS, 1912. 



'"Black-breasted (Jrowned Eagle" (Quelch). 



Nearly adult. General colour above black, broadly Ijandod Avitii 

 1)10 wii on the primary and secondary quills and tail, the last 

 tipped with white and the bands waved with the same colour; 

 u])per tail-coverts s})otted and edged with white ; the flighl-quills 

 notched Avith white on the inner webs; crown o£ head and cie.>t- 

 feathers white at the base with black tips ; sides of face and sides 

 of neck black ; throat and fore-neck white with broad black shaft- 

 lines which widen out on the chest, becoming smoky-brown and 

 white on the breast ; axillaries, flanks, abdomen, and under tail- 

 coverts black barred with white; under wing-coverts white barred 

 with black ; under surface of quills and tail dark brown banded 

 with silvery grey. 



Total length 690 mm.,culmen (including the cere) 38, wing 395, 

 tail 323, tarsus 90, middle toe and claw G2, hind claw without 

 toe 39. 



Tlie bird described was collected on the Mazaruni Biver. 



Breeding-season. Unknown in Britisjh Guiana. 



JVest. Unrecorded in British Guiana. 



J'^ggs. Undescribed from British Guiana. 



Range in Bntish Guiana. Mazaruni liiver {McConnell collection). 



Ejctralimital Range. South America to South-east Brazil and 

 Central America to Guatemala. 



Habits. Unrecorded in British Guiana. 



Mr. J. J. Quelch (Timehri (2) vi. p. 150) gives a description of 

 this species from Guiana, and calls it the Black-breasted Crowned 

 Eagle ; he also remarks that it is not included in Salvin's revised 

 list of the birds of British Guiana. 



