Bubulcus
ibis
(Cattle
Egret)
Physical
Description:
Size 20" (51 cm).
A small white heron. resembles the
Snowy Egret, but has s shorter, thicker neck and orangish
bill and legs. Breeding adults have a buff-orange plumes
on mantle
, breast and crown
. Often stands in a hunched
position.
Similar Species- Great Egret is much taller and more slender with longer bill and legs. Legs always black. Snowy Egret has longer, slimmer black bill, yellow feet.
Song:
Makes various croaking
sounds on the breeding range.
Distribution:
Breeds from California,
southern Idaho, Colorado, and North Dakota, east through parts of southern Canada
and northern U.S. to Maine, and south (primarily in coastal lowlands) to South
America. Winters throughout much of breeding range.
Habitat:
Found in wet pastures
and freshwater and
brackish
areas, but may also be
found in dry fields and garbage dumps.
Diet:
Eats mainly insects and amphibians,
but may also eat reptiles and small rodents.
Ecology:
Builds nest in tree with other
egrets and ibis. Frequently nests in colonies. In Idaho, shares nesting areas
with herons. Often flies in large flocks
in morning and evening.
Usually feeds on dry or moist ground near cattle or horses, sometimes near farm
machinery.
Reproduction:
Both sexes incubate
2- 6 eggs (usually 3-4),
for 21-24 days. Young fly short distances at 40 days, and reasonably well at
50 days. May breed at 1 yr.
Conservation:
| Element Code: | ABNGA07010 |
| Status: | Protected nongame species |
| Global Rank: | G5 |
| State Rank: | S2 |
| National Rank: | N5B,N5N |
Important
State References:
Trost, C.H. and A. Gerstell.
1994. Status and distribution of colonial nesting waterbirds in southern Idaho,
1993. Dept. Bio. Sciences, Idaho St. Univ., Pocatello. 101pp.