274 



NOllTII AMEJUCAN BIRDS. 



Wlietliur this is a progri'ssivo stiij^c of plumajie or a mere individual 

 peculiarity, I do not fee! certain, but am inclined to the latter opinion. 

 Both tills sj)ecimen and the immature one descrilied are hihelled B. d/bunuln- 

 fi's, ('•my ; 1 have lieen unaUe to refer to (J ray's original description; if 

 there is no doubt of its beinj; ])ertineiit to the innuature sta^^e described, 

 then this M'ill be tlie name of the species, as it has [iriority ; I should nuich 

 regret, ho\vev(>r, to discard the very ap])ropriaio and characteristic name 

 zonocemiK, for the otlier, as Mr. Sclater's speci&s is so satisfactorily descril)ed 

 and accuiately fiuured, while the original description of idhonotatus is very 

 meagre and ditlicult of refei'enee. 



Habits. This Hawk is a Mexican and (hiatemalan species which occa- 



Bntut zntinrfrcits (ati it). 



sionally strays into our liorders in Arizona and in Southern Califoriua. Dr. 

 Cooper was the iirst of our naturalists to meet ^vith this s])ecies within the 

 United States, shooting an indiviihial on the 2:>d of February, 18(52, thirty 

 miles north of San Diego, and witliin five of the coast. It was associating 

 witli specimens oi' Jl insii/niitn.'i and otiier Hawks wintering there, and seemed 

 rather sluggish and tame. He saw no otli(>r lUack Hawks in that neighl)or- 

 homl. Two years afterwards, September 24, lS(i4, Dr. ('ones also procured 

 a single specimen on the Gila Kiver. He regards the species as restricted. 



