Von Schrenck's Bittern

Ixobrychus eurhythmus

Order

PELECANIFORMES

Family

Bitterns, Herons and Egrets (Ardeidae)

Code 4

Non-AOU

Code 6

IXOEUR

ITIS

Egg Color:

White



Number of Eggs:

4 - 6



Incubation Days:

18 - 21



Egg Incubator:

Both sexes



Nest Location:

Nest is built in reeds or other marsh vegetation just above the water.



Nest Material:

Reeds and marsh grass



Migration:

Migratory



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General

Von Schrenck's Bittern: Small heron, chestnut-brown above with black-chestnut on crown, and cream-buff on underparts and shoulder of wing. Golden-yellow eyes and yellow lores. Medium-length, sharp black bill with yellow base of mandible. Fairly long, broad wings have black flight feathers. Short, black, square tail. Medium-length, olive-yellow legs and feet. Feeds on fish, frogs, and other small aquatic creatures. Forages by stalking through wetlands and quickly snatching prey with bill.

Breeding and Nesting

Von Schrenck's Bittern: Four to six white eggs are laid in a small, shallow platform nest constructed with reeds and marsh grass. The nest is built in reeds or other marsh vegetation just above the water. Incubation is carried out by both sexes for 18 to 21 days.

Foraging and Feeding

Von Schrenck's Bittern: Feeds on fish, frogs, and other small aquatic creatures. Forages in dense marshes and wetlands by stalking through the vegetation on the ground, and quickly snatching prey with bill. Often forages at dusk and perhaps at night.

Vocalization

Von Schrenck's Bittern: Call is a low, gruff "wek" or "squak." Song is a rythmic "gup gup gup" or "oo oo oo."

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UnderpartsX

Belly, undertail coverts, chest, flanks, and foreneck.

CrownX
The crown is the top part of the birds head.
Flight feathersX
Located on the wing, and collectively called remiges (singular, remex). The long stiff feathers are subdivided into two major groups based on the location and are called primaries and secondaries.
ShoulderX
The short feathers overlying the median secondary coverts on the top of the wing. They are located near the back and can be seen as the “first row” of feathers on the birds wing. They are also called marginal coverts and lesser secondary coverts.
Parts of a Standing bird X
Head Feathers and Markings X
Parts of a Flying bird X