Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Zonotrichia leucophrys
White Crowned Sparrow
4Apr. Frach Stadium, N.W. corner - In a spot
here where vines grow up and cover the
wall, a white crown nest with 3
young, maybe 3-4 days old. Down
appearing over beaks. Gape bright red.
outlined in yellow. Two seem bigger
+ more active than third. Eyes not open.
Cold this morning. Those mother comes
back to brood them soon. Both parents
flew off N. Birds squeaking faintly.
Barnett along Ath Field tower see, uppe part
Still 4 eggs in this nest. & flew off
nest at my approach, went to wall
and trilled.
6Apr. NW corner Edwards Field Part C - Tried
recording, not much luck. Still three
young ones in this nest. Eyes are open. Bills
are yellow on outside, red lined with
yellow on inside (gape). Feather quills
are through the skin. All seem at
about same stage of development. Could
hear young plainly 30ft. away when they
fed. Adults were alert but made no
disturbance when I was at nest. When
I left, one bird appeared with food.
Hopped around in vines several minutes
before going to nest. Feather one say
weakly and left. Those with food
finally delivered, left again. The young
remained quiet in the nest until I
touched it, or put my hand above the nest
where the feeding bird comes in. Even
my head in that position didn't start
them. Once the young birds started