Wildlife Clinic

Species

Wood duck

Aix sponsa

Georgia's most colourful duck, a tree-nester whose ducklings leap from their nest hole the day after they hatch.

A male wood duck swimming on dark water, his green crested head, red eye and chestnut breast gleaming.

Photo Rhododendrites (opens in a new tab) / Wikimedia Commons, CC BY-SA 4.0 (opens in a new tab)

At a glance

Size
About 47 to 54 cm long
Weight
About 450 to 880 g
Habitat
Wooded swamps, beaver ponds, creeks and ponds with trees around them
Diet
Acorns, seeds, fruits, aquatic plants and insects
In Georgia
Common all year and breeds statewide
Voice
A rising, squealing "oo-eek" from the female; males give a thin whistle
Rabies vector
No

Identification

Male
Glossy green crested head with bold white lines; red eye; chestnut breast; buff sides
Female
Grey-brown with a white teardrop patch around the eye and a small crest
Told apart from
Hooded merganser, which has a thin bill and a fan-shaped crest
Told apart from
Mallard females, which are streaked brown with no white eye patch
Where to look
Quiet backwaters under overhanging trees; often perched on branches

Behaviour

Wood ducks nest in tree hollows and nest boxes, sometimes high above the ground and some distance from water. They perch readily on branches and fly nimbly through woods.

A day after hatching, the ducklings climb to the entrance of the nest hole and jump, sometimes falling many metres to the ground unharmed, then follow their mother to water.

Why they matter

Wood ducks were nearly wiped out by 1900 through hunting and the loss of old swamp forests. Hunting limits and nest boxes brought them back, and they are one of the great recovery stories in North American conservation.

They eat large numbers of acorns and other tree seeds, and they depend on the old, hollow trees and beaver ponds that many other animals also need.

Reproduction and lifecycle

Nest — A tree hollow or nest box lined with down
Eggs — Usually 9 to 15; females sometimes lay in each other's nests
Incubation — About 30 days
Leaving the nest — About a day after hatching, by jumping to the ground or water
Young — Feed themselves; the mother guards them for about five to six weeks
Flight — At about eight to ten weeks
Lifespan — Usually a few years; some over fifteen

Living around people

  • Nest boxes mounted over or near water, with a predator guard, are used readily.
  • Ducklings dropping from a box or tree to the ground is normal and part of the plan.
  • Old hollow trees near water are nest sites; leaving them standing where safe helps.
  • Fishing line at pond edges tangles ducks and ducklings.

Misconceptions

  • Ducklings on the ground under a tree need rescuing. They jumped from the nest, as wood duck young always do; the mother gathers them and leads them to water.
  • Wood ducks are rare. They were, a century ago. They are now common across Georgia.

Related species

Seasonal activity

When this species is breeding, and when there are nests on the ground. Mowing during the shaded months is how most nests are found.

Breeding and active nests by month for this species
JanFebMarAprMayJunJulAugSepOctNovDec
BreedingJan: noFeb: noMar: noApr: noMay: noJun: noJul: noAug: noSep: noOct: noNov: noDec: no
Active nestsJan: noFeb: noMar: noApr: noMay: noJun: noJul: noAug: noSep: noOct: noNov: noDec: no
NotesPairs formingFemales searching for nest holesEgg layingIncubation; first broods leave the nestBroods on the waterSome females nest a second timeAdults moultingYoung flyingFlocks gather in swampsFeeding on acornsNorthern migrants arriveWintering in swamps and ponds

Where it lives

Recorded in 66 states and provinces. Each one links to the other animals there, and to the rehabilitators licensed for them.

If you found one

Answer a few questions and you will get a specific answer for what you are looking at.

I found an animal