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Hooded Merganser


Hooded Merganser
Photo Information
Copyright: Jean Yves Bissonnette (JYB) Silver Note Writer [C: 2 W: 0 N: 84] (916)
Genre: Animals
Medium: Color
Date Taken: 2008-03-12
Categories: Birds
Camera: Canon 30D, Canon 100-400L 4.5-5.6 IS USM, RAW @ ISO 400
Exposure: f/7.1, 1/1600 seconds
Photo Version: Original Version
Date Submitted: 2008-03-13 8:32
Viewed: 3327
Points: 0
[Note Guidelines] Photographer's Note
Informations on this bird. Have a nice day to all. JYB

Description

Small to medium-sized duck.
Long, narrow bill.
Fluffy, fan-shaped crest.
Male with large white patch in crest.

Size: 40-49 cm (16-19 in)
Wingspan: 60-66 cm (24-26 in)
Weight: 453-879 g (15.99-31.03 ounces)
Sex Differences
Male boldly patterned with black and white crest, female smaller and grayish brown with shorter crest.

Sound
Silent except in courtship when male gives a deep rolling frog-like sound. Wings produce a loud whistling in flight.

Status

Populations appear stable.

Other Names
Harle Couronné (French)
Serreta capuchona (Spanish)


Cool Facts

The Hooded Merganser is the second-smallest of the six living species of mergansers (only the Smew of Eurasia is smaller) and is the only one restricted to North America.


Although up to 44 Common Merganser eggs have been found in one nest, one female probably does not lay more than about 13. Larger clutches result when more than one female lays eggs in a nest.


The Hooded Merganser finds its prey underwater by sight. The merganser can actually change the refractive properties of its eyes to enhance its underwater vision. In addition, the nictating membrane (third eyelid) is very transparent and probably acts to protect the eye during swimming, just like a pair of goggles.

Sources used to construct this page:
topDugger, B. D., K. M. Dugger, and L. H. Fredrickson. 1994. Hooded Merganser (Lophodytes cucullatus). In The Birds of North America, No. 98 (A. Poole, and F. Gill, eds.). The Academy of Natural Sciences, Philadelphia, PA, and The American Ornithologists' Union, Washington, D.C


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