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Tuesday, 11 August 2026

30-7-2026 ROSTELLAN, IRELAND - MUTE SWAN (JUVENILE) (Cygnus olor)

A juvenile mute swan (Cygnus olor) is a large young water bird. It has dusty gray-brown feathers instead of bright white. Its bill is dark gray or dull pinkish instead of orange, and it lacks the large black forehead knob that adults have.

Physical Traits

Color: Dusky gray-brown body, paler on the neck and chin.

Bill: Dull gray, black, or pinkish-horn with no visible knob.

Size: Nearly as large as an adult, with a long neck.

Change: Feathers turn white and bills turn orange during their first year or second year.

Life and HabitsTracked by bird watchers on platforms like eBird.

Stays with family groups for several months after hatching.

Eats water plants by dabbling in lakes, ponds, and slow rivers.