436 Mr. Vigors's Sketches in Ornithology/. 



There are specimens of the male and female of this species iit 

 the collection ; at least they agree in so many essential points 

 with the description of the type of the species, although they 

 dififer in others, that I presume they must belong to it. The spe- 

 cies has indeed been observed to be extremely subject to varia- 

 tion. The chief difference in our birds is in the size, which is less 

 than that of the typical birds, and in the fascicc of the wings and 

 tail, which are less frequent, and of a different form. Our female 

 is also much more rufous throughout. Wilson, in his American 

 Ornithology,* when describing F. Sparverius^ refers to a smaller 

 Falcon found in the Southern States of North America, which is 

 nearly allied to that species, but at the same time distinct. I 

 suspect that the bird to which he alludes may be the following 

 species, which, although it has arrived in company with the birds 

 now described, I consider too strongly distinguished not to demand 

 a separate description. 



4. FalCo Sparverioides. 



F. capiie alisque cinereo-griseis^ collo abdomine dorso caudaque 

 badiisy hacprope apicem nigro fasciaid, 



Faemina? Aut mas junior ? Dorso cinereo'griseo, 



Frontis ])luma3 albescentes; capitis fusco in medio gracillim6 

 striatae. Gula gencB({\xe albas, his nuch&que maculis nigris notatis* 

 Dorsi femoru?nque \)\\imdd parce nigro maculatas, hae pallidiores. 

 Scapularium tectricumque superiorum plumae in medio nigro gra* 

 ciliter striatae. Remigum pogonia externa nigra, interna grises- 

 centia; trium externarum fusco frequenter et conspicue fasciata ; 

 reliquarum indistincte notata, aliquibus secundariarum exceptis, 

 quae sunt pallidiora et fusco magis saturate fasciata ; subtus, pogo- 

 nia externa pallide fusca, interna albescenti-grisea, fasciis trium 

 externarum pallidis at conspicuis, reliquarum fere obsoletis. Tec- 

 trices inferiores albae, nigro fortiter et frequentissime notatae. 

 Rectrices supra saturate badiae, fascia lata nigra prope apicem 

 notatae, apice ipso griseo; omnes duodecim concolores et similiter 

 notatae. Rostrum ad basin plumbeum, apice nigro. Pedes flavi, 



* Vol. II. p. 1 17. 



