296 



6. Scops maccalli, Cassin, B. of Cal. p. 180. 

 cJ, Parada, Dec. 1857. 



I cannot quite make this bird fit Mr. Cassin's description ; but it 

 certainly has the general appearance of Scojjs asio, and is smaller, 

 measuring, whole length 7'0, wing 5 - 2, tail 2*8. There are traces 

 in the colours above of the lingering red plumage, which is said by 

 Mr. Cassin (in the General Report of the U. S. R. R. Expedition 

 and Surveys) to characterize the young of this species as well as of 

 Scops asio. 



7. Antrostomus macromystax (Wagl.) ? 



Caprimulgus macromvstax, Wagler, Isis, 1831, p. 533 ; Cassin, 

 B. Cal. p. 240. 



$. Parada, Oct. 1857. 



I regard this Antrostomus as very likely to be Wagler's A. ma- 

 cromystax, — it agreeing with all the characters he gives of that spe- 

 cies, and several other birds noticed by Wagler in the same paper 

 being in this collection. The specimen bears a general resemblance 

 to A. vociferus, but is rather larger, and the wings and tail longer. 

 The rictal bristles are particularly stiff and long, the longest mea- 

 suring 1*8 inch in length, which is quite as long as the "head 

 without the bill." The plumage above is more closely freckled 

 than in A. vociferus, particularly on the head (which is variegated 

 nearly the same as the back), and presents the black vertical line 

 much less distinctly. The wings and tail are coloured nearly as in 

 A. vociferus ; but the ground-colour is darker, being nearly black, 

 and the white tips of the outer tail-feathers are much broader, ex- 

 cept on the outer web of the outer feather, which the black ad- 

 vances far down, leaving only a narrow white termination. Whole 

 length of skin 9 '7, wing 6*7, tail 5*0. 



8. Petrochelidon swainsoni. 



Hirundo melanogaster (!), Sw. Phil. Mag. 1827, p. 366. 

 Nitenti-ccerulescenti-nigra, fronte, lateribus capitis, cervice un- 

 dique cum gula et pectore antico Icete rufis : macula pectorali 

 nigra : uropygio pallide rufescenti-fulvo : alis caudaque ob- 

 scure brunneis : abdomine albo, crisso rosacescente : rostro 

 nigro : pedibus brunneis. 

 Long, tota 50, alte 4*1, caudse 2*0. 



Obs. Inter Petrochelidonem lunifrontem ex America Boreali, et 

 P. fulvam ex insula Jamaica media ; huic fronte rubra, illi vero 

 uropygio pallidiore et macula pectorali nigra magis affinis ! 

 c?, Oaxaca, June 1857. 



This interesting bird, which has now for the first time come under 

 my notice, is a close ally of P. fulva and P. lunifrons, and in some 

 respects intermediate between the two, as I have just pointed out. 

 The front is rufous, like the sides of the head and collar behind, and 

 shows no trace of the whitish mark which so eminently distinguishes 

 P. lunifrons. It is also inferior in size to my specimen of that spe- 



