O-i BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 



Ardea virescens anthonyi Mearns. 

 Anthony's Green Heron. 



(?) Butorides virescens (not Ardea virescens Linxaeus) Belding, Proc. U. S. Nat. 

 Mas., V. 1883, 544 (Cape Region). 



The Green Herons taken by Mr. Frazar at San Jose del Cabo seem to be all 

 A. V. anthonyi. At least they are much too large for virescens, while the 

 young (nine in number) agree perfectly with young specimens of anthonyi 

 from California. Like the latter they have the white on the tips of the pri- 

 maries and secondaries, and the light edging on the wing coverts much broader 

 and more conspicuous than in the young of our eastern bird. The three adults 

 are very unlike the only two known specimens of frazari (both of which are 

 fully mature), having the chestnut of the head and neck even lighter and 

 more rufous than in virescens, instead of deeper and more glaucous, as is the 

 case with frazari. In this respect, as well as in size, they are typical of an- 

 thonyi, but in respect to the extent and distribution of the whitish or rusty 

 markings on the wings and under parts they agree better with virescens. 



Anthony's Green Heron is probably only a transient visitor to the Cape 

 Region. At least Mr. Frazar did not meet with it in winter or early spring at 

 La Paz nor anywhere during the breeding season. It was common at San 

 Jos^ del Cabo, however, from August 25 to about October 15 ; after the latter 

 date only an occasional straggler was noted, the latest on November 11. Rather 

 curiously, all the birds seen at the locality just named occurred along the sand 

 bars and sandy shores of the river, although there were plenty of muddy creeks 

 and pools in the immediate neighborhood. 



The general range of this form of the Green Heron is not, as yet, definitely 

 known. It has been found breeding in Arizona and southern California, and 

 I have a typical example (taken on May 13) from Franktown, Nevada. It is 

 said to be represented in the Smithsonian Collection by specimens from the 

 Valley of Mexico and from Santa Efigenia, Tehuantepec. 



Nycticorax nycticorax naevius (Bodd.). 

 Black-crowned Night Heron. 



Njjcticorax griseus naevius Belding, Proc. U. S. Nat. Mus., V. 1883, 544 (Cape 



Region). 

 Nycticorax nycticorax naevius Bryant, Proc. Calif. Acad. Sci., 2d ser., II. 1889, 270 



(Cape Region). 



This Night Heron was found in the Cape Region by both Mr. Belding and 

 Mr. Frazar. The latter observer noted it at La Paz in winter, and at San Jose 

 del Cabo in October. " A few were seen at Santa Margarita Island in the 

 month of February, 1888," by Mr. Bryant. 



