ExploreBirds

Red-breasted Merganser

Mergus serrator

The Red-breasted Merganser is a beautiful duck with a striking red chest and a long, slender body. They love to dive underwater to catch fish and can be seen swimming in lakes and rivers.

Habitat: Coastal areas

Appearance

The Red-breasted Merganser has a shaggy crest and a long, thin, reddish bill with a hooked tip. Males display a dark green head, a rusty-red chest band, and striking black and white body feathers. Females are more muted with a reddish-brown head and a less distinct crest.

KingdomAnimaliaPhylumChordataClassAvesOrderAnseriformesFamilyAnatidaeGenusMergus
Red-breasted Merganser
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Red-breasted Merganser

Category

Birds

Rarity

Common

Danger

1/5 · Very low

Snaps

12

Interesting facts

Baby mergansers can dive and find their own food just a few days after hatching!

These ducks need a running start on the water to take off into flight, like an airplane!

They can stay underwater for nearly a full minute while hunting for fishy snacks!

Unlike most ducks, mergansers keep their wild, spiky hairdo even when diving!

Special abilities

Ability

Underwater Vision

Red-breasted Mergansers have special clear eyelids that act like goggles, helping them see perfectly while diving underwater.

Ability

Fish Gripper Bill

Red-breasted Mergansers have a long, slender bill with saw-like edges that help them grip onto slippery fish in the water.

Ability

Deep Diver

Red-breasted Mergansers have powerful webbed feet and a streamlined body that helps them chase and catch fast fish deep underwater.

Measurements & details

Length
51-62 cm
Wingspan
70-86 cm
Weight
0.7-1.4 kg
Lifespan
5-10 years
Top Speed
90 km/h
Clutch Size
7-12
Incubation
29-32 days
Migration Distance
2500 km

Diet & Feeding

These speedy swimmers mostly gobble up small fish, but also enjoy a few other aquatic critters!

Age differences: Young mergansers start with small aquatic insects before moving to larger fish.

Primary Foods

  • herring
  • smelt
  • sticklebacks
  • sculpins
  • crustaceans
  • aquatic insects

Foraging Method

  • Pursuit

Ecological connections

Traits

Also known as

No aliases listed yet.

Collections

Safety

Danger

1/5 · Very low

Always watch birds from a distance and don't try to touch them.

Frequently Asked Questions

How to identify Red-breasted Merganser?

The easiest way to identify Red-breasted Merganser is to use the Snappit nature identifier app.

How long is Red-breasted Merganser?

51-62 cm

What is Red-breasted Merganser's wingspan?

70-86 cm

How much does Red-breasted Merganser weigh?

0.7-1.4 kg

How long does Red-breasted Merganser live?

5-10 years

How fast can Red-breasted Merganser move?

90 km/h

What does Red-breasted Merganser eat?

These speedy swimmers mostly gobble up small fish, but also enjoy a few other aquatic critters!

Where is Red-breasted Merganser usually found?

Coastal areas

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