- Comments:
The most common ibis encountered in the Great Plains, White-faced Ibises nest in
large colonies, usually in dense, emergent, marsh vegetation. Ibises feed in large flocks
in flooded fields and shallow wetlands, primarily on insects, crustaceans and earthworms.
Pesticide and heavy metal contamination and drainage of wetlands led to an alarming drop
in numbers in the 1960s and 1970s. Banning DDT and dieldrin, as well as habitat
conservation and improvement projects, have led to an increase in ibis numbers. Conflicts
with crayfish producers may arise when ibises flock to their ponds to feed. White-faced
Ibises are most likely confused with Glossy Ibises.
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