THE NIDOLOGIST 
An Anti-Camera Demonstration—Young Great Blue Heron 
COOPER ORNITHOLOGICAL CLUB 
Southern Division 
HE Southern Division met April 26, at 
the home of W. B. Judson, Highland 
Park, Cal. R. B. Blackman of Los 
Angeles and Walter L. Richardson and H. 
A. Young of Pasadena were elected to active 
membership. The Lite History Committee, 
F. B. Jewett Chairman, requests that any- 
one having notes on the early life histories 
of Southern California birds hand the same 
in before May 29, in order that they may 
be embodied in the report then to be made. 
Notes on Cormorants 
Horace A. Gaylord presented the follow- 
ing notes: ‘‘On Geronimo Island, Lower 
California, both Brandt’s and FaraJlone 
Cormorants are very abundant; yet it isa 
remarkable fact that the two species do not 
associate with each other to any great 
extent. Late in the afternoon long lines of 
Cormorants begin to come in from their 
day’s work among the fish to their roosting 
placeson theisland. The Farallone, flying 
to a beach or to low rocks near the water’s 
edge, roost in loose, irregular companies, 
while the Brandt’s, choosing a flat portion 
of the island farther away from the water, 
stack themselves closely together in large 
armies. This individuality seems to hold 
good in the nesting habits of these twe 
species, for wherever I have found both 
these birds nesting on the same island, I 
have noticed that the nests of the Farallone 
were comparatively scattered while those 
of the Brandt’s were packed thickly 
together.’’ 
Black-throated Sparrow 
A. I. McCormick read a paper on ‘‘The 
Black-throated Sparrow,’’ based on obser- 
vations taken at Randsburg on the Mojave 
Desert. Five sets of eggs were taken 
between May 21, and June 6, 1896. On 
May 21, a nest was found in a mesquite ro 
feet up, containing three eggs advanced in 
incubation. Onthe same day a second nest 
was met with containing two fresh eggs, 
built in asmall thick bush 2 feet from the 
ground in a canyon, and but two feet from 
a wagon road. May 31, aset of two slightly 
incubated eggs were taken from a nest in a 
small mesquite one foot from the ground. 
June 2, a nest was found in a thorny white 
sage 2% feet from the ground, containing 
two eggs; the nest could be seen from a path 
about ro feet distant. June 4, a set of two 
was taken from a nest ina low thick ever- 
green bush one foot up, in the bottom of a 
small canyon. June 6, an advanced set of — 
two was taken from a nest ina low mesquite. — 
Two other nests were found each containing 
two young and one with one young bird and 
two addled eggs. It would seem that in 
this locality two eggs are the usual comple-. 
ment. ‘‘This bird wasthe most interesting 
one met with on my trip. The song is the 
sweetest of any desert bird. It is composed 
of notes of little-varying pitch, though very 
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