A tistralian Birch in the Collection of the Linnean Society. 181 



lares tectricesque fuscœ, ad basin albœ fusco-variegat<E. 

 liecfrices fasciis plurimis fuscis instriictae, pogoniis internis 

 albo-marginatis. Pedes pallidi ; ungues nigri. Longitudo 

 co7'poris,l5^; «teacarpoad remigem quartam, 10^; caudce, 

 8^ ; mandibula. superioris, 1^, inferioris, 1 ; tarsi, 2f . 



Memoria Joannis Raii, Zoologicorum Bintannicorum pri?!- 

 cipis, hœc species perpulchra sit sacra. 



3. Radiatus. Ast. nigro radiato-maculatus, corpore ferrugineo, 



alis caadâque elongatâ fuscis. Lath. 

 Falco radiatus. Lath. Ind. Orn. Supp. p. xii. no. 40. 

 Autour radieux. Temm. PI. Col. 123. Juv. 

 Radiated Falcon. Lath. i. p. 222. Jio. 153. pi. xi. 



4. Fasciatus. Ast. supernê fusco-brimneus, subtus albidus, con- "j 



fertim fusco-brunneo-fasciatus, femoribus rufo-fasciatis. 



Rostrum nigrum. Bemiges superne fusco-brunneœ, pogoniis 

 internis rufo-marginatis, fusco-fasciatis ; subtus albida?, 

 fusco-fasciata?. Bectrices superne fusco-brunneœ, subtus 

 albidœ, fasciis plurimis nigris instructse ; pogoniis internis 

 superne rufescentibus, fusco-fasciatis. Longitudo corporis. 

 Maris 16^, Fcem. 19-5-« ^'^^ ^ carpo ad remigem quartam, 

 Maris 10^, Fœm. 12; candie. Maris 8, Fœm. 9; mandi- 

 bula superioris, Maris -|-, Fœm. -]-§-; inferioris, Maris f, 

 Fœm. if ; tarsi. Maris 2|-, Fœm. 3|-, 



This bird is called in New Holland the greater Bilbil, as we 

 are informed by Mr. Caley. Bilbil seems to be a general name 

 for several species of Hawks. 



5. Approximans. Ast. superne fusco-bru7meus, subtus albidus '""^ 



brunneo-variegatus ; femoribus rufo-fasciatis, rectricibus ob- 

 scure fusco-fasciatis subtus pallidioribus. . 



Rostrum 



