Wednesday, February 29, 2012

Owls and Vutures


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. 



Eastern Screech Owl
 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.
 

 Barred Owl
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.
Barn Owl 
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.
Great Horned Owl
 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.
Black Vulture
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.

Turkey Vulture 

 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 billFeathers near the wingtips and edge are more lightly colored.
 

Tuesday, February 28, 2012

Thursday Lab 2/23/12 Trip to Newport News Park



Downy Woodpecker
·         Smaller woodpecker
·         Straight powerful bill
·         Checkered black and white pattern

Red-bellied Woodpecker
Newport News Park 2/23/12

·         Round head
·         Black and white striped down back
·         Red cap and nape with white patches near wingtips


Brown Creeper

·         Small, brown and white streaked underparts
·         Long bill and tail


Tufted Titmouse
Newport News Park 2/23/12
·         Large head and eyes, thick neck and body
·         Crest
·          Greyish on top and white under with a rust colored area around the flanks


White-breasted Nuthatch












http://www.allaboutbirds.org/guide/White-breasted_Nuthatch/id/ac
·         Small with large head
·         Gray-blue on back and white face
·         Black or gray cap that looks like a hood


Bald Eagle

Newport News Park 2/23/12
·         Large size with long broad wings
·         White head and tail over brown body
·         Yellow bill


Double-crested Cormorant

Newport News Park 2/23/11
·         Large dark colored diving bird
·         Long neck and blunt or hooked tipped bill


Ring-billed Gulls
Newport News Park 2/23/12 (Juvenile: Bottom)

·         Small gull with rounded head
·         Yellow or pink bill has black ring
·         Females also have pink legs in addition to their bill


Mallards (Male and Female)
Newport News Park Mallards (Male:Top, Female: Bottom)

·         Large duck
·         Male: Green shiny head and gray body
·         Female: mottled brown


Pied-billed Grebe

·         Small, Brown head and body
·         Small head with short, thick bill


American Coot
Newport News Park 2/23/12
·         Black body, diving bird
·         White bill with dark mark near the tip
·         White stripe on sides under the tail


Ring-necked Duck

·         Medium size, diving
·         Male: Blueish bill with white ring close to black tip, mostly black with gray sides, white stripe on shoulder
·         Female: Tan and gray, white around eye


American Robin

·         Large size
·         Long legs and tail
·         Gray-brown color with rust orange color on underparts

Carolina Chickadee
Noland Trail 2/09/12
·         Very small with short neck and large head
·         Black cap and bib with gray wings and long gray tail


American Wigeon

·         Medium size
·         White crown on males with green patch behind eye
·         White patch in wings
·         Black rear with white surrounding


Canada Geese
Newport News Park 2/23/12
·         Large, with long neck and webbed feet
·         Bill is wide and flat
·         Dark head, white cheeks, light brown breast, and brown back


Great Egret
 Sandy Bottom 2/1/12


Large size, white
Long skinny, black legs


Hermit Thrush
Newport News 2/23/12
·         Robbin like shape
·         Brown body with reddish long tail
·         Spots on throat smudging to chest


Yellow-belied Sapsucker

·         Medium woodpecker with red crown and throat
·         White stripe on side
·         Disorganized black and white bars running down back


Eastern Bluebird
Newport News Park 2/23/12
·         Small thrush with a large round head and thick body
·         Wings are long, while body is a vibrant blue on top and light orange on throat and chest
·         Bill is short


While Leaving

Tundra Swan

·         White all over
·         Straight neck, long in length
·         Black extends from bill to cover the face


Mute Swan

·         All white large body
·         Neck long like the tundra swan but curved
·         Bill is orange in contrast to its black face