Snowy-crowned Tern
A species of Typical Terns Scientific name : Sterna trudeaui Genus : Typical Terns
Snowy-crowned Tern, A species of Typical Terns
Botanical name: Sterna trudeaui
Genus: Typical Terns
Content
Description General Info
Photo By Cláudio Dias Timm , used under CC-BY-SA-2.0 /Cropped and compressed from original 
Description
The adult snowy-crowned tern has a moderate-sized head and a slender body. It reaches a length of about 16 in (41 cm). The bill is slender, flattened, slightly down-curved and about the same length as the head. It is black with a yellow tip, a yellow edging to the mandibles and a yellow base to the lower mandible. The iris is brown. Around and behind the eye is a slatey-grey patch, the rest of the head being white. The upper-parts and underparts are light bluish-grey, apart from the axilliaries, rump and tail-coverts, which are white. The wings are long, slender and pointed, sometimes with a little black on the wing-tips, and the tail is deeply forked. The feet are orangish-yellow. The call is a series of rapid notes "je-je-je-je", or a harsh "jeeer". 
Size
35 cm
Feeding Habits
Snowy-crowned Tern primarily consumes small fish, such as silversides and pejerrey, and insects. They forage over shallow waters and ploughed fields, plunge-diving to catch prey, which predominantly ranges from under 35mm to over 50mm in length.
Habitat
The snowy-crowned Tern predominantly resides in fresh and saline wetland habitats, which include the vegetated lagoons of pampas and Patagonian regions. They are known to breed in marshy areas, as well as on dykes and islands within saline lagoons. For foraging, they frequent the edges of these wetlands and occasionally soar over adjacent fields.
Dite type
Piscivorous
General Info
Distribution Area
Trudeau's tern is resident in the southern half of South America. It breeds in Uruguay, Brazil, Argentina and Chile and migrates in winter further north along the coast to Rio de Janeiro in the east and southern Peru in the west. It is a vagrant to the Falkland Islands and Paraguay, and the birds Audubon described from New Jersey were far outside the normal range.
Species Status
Not globally threatened.
Scientific Classification
Phylum
Chordates Class
Birds Order
Shorebirds Family
Gulls Genus
Typical Terns Species
Snowy-crowned Tern 
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