139 



Long. tot. 21 unc; rostri, 1-^; alee, \Q\\ cmida;, 8; tarsi, 2^. 



Hab. in Australiii. 



Ohs. I venture to characterise this bird as distinct from the Pan- 

 dion Haliaetus, as it appears to be always smaller in size, and is 

 moreover said to have yellow tarsi. Tiie individual from which my 

 description was taken has this character to a certain exient, although 

 a leaden tint pervades in some parts. I have never seen a specimen 

 of P. Haliaitas with so much white on tlie head and bade of the 

 neck as is found in the Australian bird. 



Falco frontatus. Falc. fronte cinerescenti ; vertice, genis, 

 jihimis auricularibus, corporeque sujjrd cinerescenti-jjlumhaceis ; 

 primariis intiis macidis ovalibus cervinis ornatis; rectricihus 

 Cauda duabus intermediis cinereis, niyro obscure fasciatis, reliqi/is 

 einereo etrufescente alter naihn fasciatis ; gidd, pecloreque ■puLlide. 

 cervinis, hvjus plumis in inedio lined fused notatis ; corpore sub- 

 tiis obscure riifescenti-aurantiaco ; rostro plumbaceo, cerd pedi- 

 busquc jlavis. 



Long. tot. 12. unc; rostri, \; alcE, 9|; caudoi, 5^; tarsi, 1|. 



Hab. in Nova Cambria Australi. 



Obs. I find the young of this species much darker than the adult, 

 particularly in the markings of the chest and abdomen ; the upper 

 surface also has most of the feathers tinged -with reddish brown, 

 and the tail-feathers are tipped with this colour. 



This species is nearly allied to Falco subbuteo and F. ^salon. 



Falco melanogenys. Mas. Falc. capite toto fiiscescenti-nigro ; 

 corpore supra, alis, cauddque einereo fuscoque alter natini fas- 

 ciatis; jjritnariis extiis intense fuscis, intiis cervino fasciatis ; 

 Cjuld pectoreque cervinis; abdomine rifcscenti-cinereo, yuttis 

 ovalibus intense fuscis ornato; lateribus crissoque rufescenli- 

 cinereis,fasciis intense fuscis contorthn notatis; rostro adapicem 

 plumbaceo, ad basin flavo; cerd pedibusque fiavis. 



FcEM. A muri differt staturd majore, necnon colore gulai, pectoris, 

 abdominisque intensiore. 



Mas. Long. tot. 15 unc; rostri, \^; aloi, \\\\ caudce, 5^; iarsi,!^. 



F(EM. 17 ; , If; — ,13|; ,6-^; ,l|. 



Hab. per totam Australian!. 



Obs. This species is closely allied to the Falco Peregrimts, from 

 which it may be at all times distinguished by the black colouring 

 of the cheeks. 



Falco brunkeus. Falc. capite, corporeque superiore intense 

 fuscis; primariis intiis notis albis triangtdaribns ornatis; caudd 

 lineis fuscesce?itibus septem obscure et angnste fasciatis; gidd, 

 notdqiie ante oculos cervinis; pectore jjallide cervino, plumis 

 lined fusco centrali notatis; corpore subtiis albo fuscoque com- 

 mixtis ornato; iridibus jlavis ; rostro nigra; 2Jedibus 2}lumbaceis. 



Long. tot. 16 unc; rostri, 1^; ala;, 10; candce, 7^; tarsi, 2^. 



Hab. in Nova Zealandia. 



Obs. In the Collection of the Zoological Society. 



