|
Field
Guide IDs: BREEDING:
Usu decid, occ
conif, forest, woodland, esp riparian. 1?
brood. DISPLAYS:
Courtship flights
with wings describing deep arc. NEST:
Broad and flat or
narrow and deep, of sticks, twigs, in crotch of
conif, by trunk in decid tree; rarely on ground.
Lined with chips, outer bark strips, occ green
conif needles, down (oft added during and after
laying). Occ use old crow nest. Male selects
site. EGGS:
Bluish-white/greenish-white,
usu nest-stained, spotted with browns. 1.5" (39
mm). DIET:
Also few reptiles,
amphibians. Hunts with low dash through
woods. CONSERVATION:
Winters s through
Mexico to Guatemala and Honduras. Blue List
1972-81, Special Concern 1982, Blue List 1986.
Serious decline began reversal in e after 1972 ban
of DDT. NOTES:
Juvenile females
occ comprise up to 20% of breeding population. Male
does most of hunting from incubation to early
nestling stage. Young hatch nearly synchronously
but size difference apparent; dependent on adults
for 30-40 days postfledging. Fairly common throughout campus year-round,
foraging on birds (often Western Scrub-Jays, Mourning Doves, and
House Finches) in virtually any habitat type. A few pairs breed
on campus; one pair has nested for several years in coast live oaks
near the mausoleum, another near the Cabrillo-Mirada intersection.....Similar
Species: Sharp-shinned
Hawk ESSAYS: REFERENCES:
Henny et al., 1985;
Kennedy and Johnson, 1986; Nelson, 1968; Reynolds
and Meslow, 1984. |
