Owl and Vulture: Description
Owls
Class: Aves (Birds)
Order: Strigiformes
(Owls)
Family:
Tytonidae
(Barn Owls) or Strigidae (Typical Owls)
•Description:
Large round head with forward- facing eyes, sharp downward-facing beak, female
can be up to 25% bigger than males.
•Owls
are Birds of Prey that have great vision and hearing. Talons and beak are
strong.
•Pellets
are regurgitated after meals and contain indigestible parts of prey.
http://www.houstonaudubon.org/default.aspx?act=newsletter.aspx&category=Bird%20Gallery&newsletterid=302
•Megascops asio
•Small,
nocturnal owl.
•2
color morphs: grey phase and reddish-brown phase
•Adult
(grey): facial disks white with grey-brown mottling, black border. Yellow iris.
Grey-green beak
•Juvenile
(grey): like adult but indistinct stripes and bars more patterned with white
tips of feathers.
•Adult
(red): cinnamon instead of grey
•Juvenile
(red): greyish brown, bars and stripes less pronounced than adult.
•Fast
flying with broad wings and head tucked in while in flight.
http://duncraft.atom5.com/barred-owls-3542.html
•Strix
varia
•Medium
sized gray to brown with horizontal barring on the chest and vertical barring
on the stomach.
•Round
head with white/brown facial disk with brown trim.
•Eyes
are brown and the beak is yellow.
•They
have a long tail
- Male and female plumage appears very similar.
http://www.owl-pictures.com/barn_owl.html
•Tyto alba
•Upper
body light grey with small dark lines and dull spotting on feathers.
•Underparts are
white
•The
facial disk is white with a brown edge and brown markings near the front of the
eyes.
•Off
white beak with yellowish-white to brown feet.
•Females
and juveniles have more spots.
- Females and males are about the same size.
http://www.oregonzoo.org/Cards/BirdsOfPrey/greathornedowl.htm
•Bubo
virginianus
•First
seen in the Virginia Colonies
•Vary
in color from a reddish brown to grey or black and white
•Eyes
are large with yellow to orange color
•Underside
is light grey with dark bars and a white band of feathers on the upper breast
•Feathers
form tufts that look like “horns”
•Large
feet have feathers that reach to the ends of toes
•Juveniles appear similar to adults
•Females
are about 15% larger
Vultures
•Consist of New World
and Old World
•Some have an unusually bald head that
does
not
require much clean after eating.
•7
extant species of New World
•Many species are endangered
•Found on every continent except Australia and Antarctica.
http://www.arkive.org/american-black-vulture/coragyps-atratus/
•Order: Falconiformes.
•Family: Cathartidae. (New World vulture).
•Scientific Name: Coragyps
atratus
•Large size
•White
patch
at tip
of broad
wings
•Dark gray wrinkled head lacking feathers
•Prefers soaring on thermals
•Juvenile
does
not
have
wrinkled skin.
http://www.calliebowdish.com/TurkeyVulture.htm
•Order: Falconiformes.
•Family: Cathartidae. (New World vulture).
•Scientific Name: Cathartes
aura.
•Large, dark coloration, wings broad, long tails, wings held slightly elevated when in flight.
•Dark brown with a red head that
lacks
feathers, pale bill. Feathers near the wingtips and edge are more lightly colored.