Behavior And Reproduction

Picids fly with both wavy and straight movements, with larger species preferring straighter motions. Since wings are short, pi-cids are able to maneuver (mah-NOO-ver) easily throughout forests. Most picids do not migrate, but some species do make seasonal migratory trips.

Vocalizations are single notes often used to communicate between breeding mates. "Winny" and "rattle" calls are often heard, but with many differences heard from different species. Picids also communicate by making mechanical sounds by tapping on wood.

Picids are monogamous (muh-NAH-guh-mus; have a single mate), and nest in cavities, holes. Most dig their own cavities, sometimes with the assistance of helpers. All females lay shiny white eggs. Clutch size (eggs hatched together) varies within and among species, but averages three to five eggs. The incubation period (time needed to sit on and warm eggs in order for them to hatch) is ten to twelve days, and is shared by both parents. Young stay helpless, naked, and blind from birth to about four to seven days. The nestling period (time to take care of young unable to leave nest) lasts from three to six weeks.

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Pregnancy And Childbirth

Pregnancy And Childbirth

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