Brood notes, May.
Baby ducks are called ducklings. The term applies from the moment they pip the eggshell until they fledge (gain sustained flight) at around 60-65 days old. A baby goose is a gosling; a baby swan is a cygnet. Mixing the three terms is one of the most common waterbird mistakes; sorting them out is straightforward once you know the brood profile.
The three terms, side by side
- Duckling - baby duck (any duck species, wild or domestic).
- Gosling - baby goose.
- Cygnet - baby swan.
All three are precocial - they leave the nest within 24-48 hours of hatching and follow the parent to water immediately. None of them is fed by the parent the way songbird chicks are; they feed themselves from day one, with the parent guiding to food.
What a duckling looks like
A Mallard duckling - the most familiar pattern - is a small puffball of brown and yellow down with darker stripes. The eyes are alert and the legs disproportionately large. Within 48 hours of hatching, the duckling can:
- Walk and run
- Swim and dive briefly
- Recognise its mother’s voice
- Feed on small invertebrates
The transition from yellow downy duckling to juvenile-plumaged “almost adult” happens over about 8-10 weeks.
The duckling life timeline
- Day 0: Pip the egg, hatch. Wet, immobile for a few hours.
- Day 1: Dry, mobile. Follow mother to water.
- Day 2-14: Heavy mortality phase. Predators, cold, drowning.
- Day 14-30: Juvenile feathers begin replacing down. Less heat loss.
- Day 30-50: Full juvenile plumage; cannot yet fly.
- Day 50-65: Flight feathers grow; first short flights.
- Day 60-65: Fledged - can fly distances. No longer a “duckling”.
By winter the previous spring’s young are full juvenile plumage and behave as adults; the term ducklings has fallen away.
Why broods are so large
A Mallard hen typically lays 8-13 eggs. By fledging, on average 2-3 survive. The high egg count compensates for the catastrophic early mortality - everything in the pond wants to eat a duckling.
The main duckling predators:
- Snapping turtles - from below, the largest single duckling killer in North American ponds.
- Pike, largemouth bass - same, from below.
- Herons, gulls - from above.
- Foxes, raccoons, mink - on bank or in shallow water.
- Bullfrogs - they really do take small ducklings.
A brood that loses half its members in the first week is normal.
How to tell a duckling from a gosling or cygnet
- Duckling - small (palm-sized at hatch), short neck, broad flat bill, mostly yellow with brown streaks (Mallard) or all dark (Black Duck).
- Gosling - larger (fist-sized at hatch), longer neck, smaller-proportionally bill, fluffy yellow or grey.
- Cygnet - bigger again (twice gosling size at hatch), very long neck even when young, downy grey-brown (Mute Swan) or white (Trumpeter Swan).
If the parent next to it is a duck, it’s a duckling. The parent is the easiest tell.
Sibley Field Guide Birds of Eastern North America
For sorting the duckling, gosling, cygnet.
The standard reference shows juvenile plumage for every species, with side-by-side scale comparisons for ducks, geese, and swans. Useful when you encounter a brood you can't identify by adult presence alone.
- Hand-painted plates with juvenile plumage shown
- All North American ducks, geese, swans covered
- Pocket size for field reference
Sibley · 2nd Ed.
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The bottom line
A baby duck is a duckling, until it fledges at around 8-10 weeks. Brood sizes are large because mortality is enormous. The terms duckling, gosling, and cygnet are distinct, and sorting them out is mostly about the parent next to them.
For more brood biology, see cygnet care and what hunts ducklings.
