BIRDS OF LOWER CALIFORNIA. 269 



One night while naAdgating the estero, I saw a large flock 

 which may have been a nesting colony, but it was too dark 

 to investigate and by daylight they were far behind. The 

 coloi s of a fresh specimen shot at Magdalena Island, Febru- 

 ary 12, 1888, were: iris, canary yellow; lores and eyelids, 

 chrome yellow; ophthalmic region, light glaucous green; feet 

 and spots on heels, light chrome yellow. 



This species also occurs at the Cape region. (Belding.) 



65. Ardea candidissima OmeL 



Snowy Heron. — Rare. Seen on a few occasions along the 

 estero and at San Juan, also at Comonda. Several seen at 

 San Jose del Cabo by Mr. Belding. 



66. Ardea rufescens GmeL 



Reddish Egket. — Earlier explorers have found this egret 

 at various places at the Cape region. They were tolerably 

 common at Santa Margarita Island, which was probably a 

 night roosting place for many amongst the mangroves. Ten 

 were seen in one flock on February 14, 1888. A female shot 

 that day contained twenty-eight fish, measuring from 25-90 

 millimetres in length; most of them were 65-75 millimetres 

 long. 



67. Ardea tricolor ruficollis CGosse). 



Louisiana Heron. — Observed from the Cape region only, 

 by Mr. Belding. In March, 1888, I saw two flying above 

 the mangrove tops of the estero. In March, 1889, a small 

 flock was seen flying from the lagoon on Santa Margarita 

 Island. 



68. Ardea virescens frazari Brewst. 



Frazar's Green Heron. —A few seen at Santa Margarita 

 Island and along the estero, also at Comondu. No speci- 

 mens were secured, but a skin in the collection of the Cali- 

 fornia Academy of Sciences from Magdalena Bay, is proba- 

 bly referable to this form. Noted from the Cape region by 

 Mr. Belding as the Green Heron, and specimens collected 

 later by Mr. Frazar. 



