D4 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
Ardea virescens anthonyi Mearns. 
AnTHONY’S GREEN HERON. 
(2) Butorides virescens (not Ardea virescens LINNAEUS) BELDING, Proc. U. S. Nat. 
Mus., V. 1883, 544 (Cape Region). 
The Green Herons taken by Mr. Frazar at San José del Cabo seem to be all 
A. v. anthonyt. 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 fight 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 
José del Cabo, however, from August 25 to about October 15 ; after the latter 
date only an occasional straggler was noted, the latest on November11. 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, Teluantepec. 
Nycticorax nycticorax naevius (Bopp.). 
BLACK-CROWNED NicHt HERON. 
Nycticorax griseus naevius BeLpinc, Proc. U. S. Nat. Mus., V. 1883, 544 (Cape 
Region). 
Nycticorax nycticorar 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 José 
del Cabo in October. ‘“ A few were seen at Santa Margarita Island in the 
month of February, 1888,” by Mr. Bryant. 
