ID Keys: Extremely long, pointed wings for body size, forked tail (usually
closed in flight, very long bill, all black (adults)
The
Magnificent Frigatebird is characterized by extremely long, pointed wings, the
longest wings for any bird in comparison to overall body weight. They are
most commonly seen soaring, dipping down close to the water's surface to pick up
food items, but never landing or swimming in the water. They are primarily
a coastal species, but on occasion can be found inland. The male has a
dramatic thraot sac which is inflated during mating display (see photo to the
right). The species is considered "hypothetical" in South Dakota, given that
rare inland sightings have occurred in nearby states.
Habitat
Typically found along the coastline, or less
often further out to sea. They can also rarely be found over inland water
bodies.
Diet
Primarily feeds on fish, as well as jellyfish,
squid, crustaceans, young birds, eggs, and young vertebrates.
Behavior
Spends most of it's time putting it's long
wings to good use, soaring in flight, dipping down to the surface of the water
to grab food items. Even when feeding over land, it will typically grab
items in flight rather than land.
Nesting
Usually nests in coastal bushes or
trees, often mangroves.
Breeding Map
Non-breeder in South Dakota
Song
Usually silent, except when on their breeding
grounds. Males in display (such as photo above) give some repeated
chattering sounds, along with bill clicking sounds.
Migration
Not typically migratory, although individual birds
will wander widely. Birds found wandering far from breeding colonies are
typically dispersing juveniles. They are almost always found in warmer waters.
