Friday, March 23, 2012

Sparrows, Finches, and Starlings (Thursday Lab)

Brooke Pemberton & Victoria Spencer

Starlings

  • Dark, glossy birds
  • Sociable and bold
  • Ground foragers
  • Four species are found in North America

European Starling

  • Identifiers
    • Iridescent black plumage
    • Yellow bill with blue (male) or pink/purple (female) base
    • Short, square tail
    • Stocky body
  • Behavior
    • Will imitate songs of other species
  • Habitat
    • Towns; avoid forests and deserts

Emberizids

  • Includes towhees, sparrows, longspurs, and Emberiza buntings
  • All species possess conical bills
  • Diets include small seeds, fruit, and insects
  • Ground foragers
  • Habitat in grassy fields and open woods
  • Geographically concentrated in the east due to diet and habitat restrictions

Field Sparrow

  • Identifiers
    • Gray face with reddish cap
    • Distinct whitish eye ring
    • Bright pink bill
    • Back is streaked except on gray-brown rump
    • Unstreaked chest
  • Call
    • Clear whistles accelerates into "chip"
  • Nesting
    • Open cup of large grass pieces placed on ground in grass clumps or at base of shrubs
  • Additional
    • Male will return to same breeding territory every year. Females are less likely and young sparrows rarely return to where they were born.
    • Male sings vigorously until he finds a mate, but rarely after that.

 Chipping Sparrow

  • Identifiers
    • Bright chestnut crown with white eyebrow
    • Black line extending from bill through eye to ear
    • Gray nape and cheek
    • Gray unstreaked rump
    • Two white wing bars
    • Tail is fairly long and notched
  • Call
    • Rapid, dry "chip" notes all on one pitch
    • High, hard "seep" or "tsik"
  • Nesting
    • Male guards female as she builds nest, but doesn't help
    • Females are picky about nest placement
  • Additional
    • "The little brown-capped pensioner of the dooryard and lawn, that comes about farmhouse doors to glean crumbs shaken from the tablecloth by thrifty housewives." -Edward Forbush
    • Move to apline tundra to molt

Song Sparrow

  •  Identifiers
    • Long, rounded tail
    • Broad grayish eyebrow and broad, dark malar stripe bordering whitish throat
    • Upperparts (chest) usually streaked
    • Underparts whitish, with streaking on sides and breast that often converges in a central spot
    • Legs and feet pinkish
  • Call
    • Loud, 2-6 phrases that starts with abrupt, well-spaced notes and finishes with a buzz or trill
  • Additional
    • In British Columbia, observed picking at the droppings of Glaucous-winged Gulls

Seaside Sparrow

  • Identifiers
    • Long, spike-like bill with thick-base and thin-tip
    • Short, pointed tail
    • Yellow loral patch
    • Dark malar stripe separates whitish throat and broad, pale stripe along cheek
    • White or buffy chest with some streaking
  • Habitat
    • Grassy tidal marshes; sometimes accidentally travel inland
  • Additional
    • Dusky Seaside Sparrow went extinct in 1987

White-Throated Sparrow

  • Identifiers
    • Strongly outlined white throat
    • Mostly dark bill
    • Dark crown stripes and eyeline
    • Broad eyebrow is yellow in the front and the remainder is white or tan
    • Upperparts rusty-brown
    • Underparts grayish, sometimes with streaking
  • Call
    • "Pure sweet Canada Canada Canada"
    • Sharp "pink" and long "tseep"
  • Additional
    • Mates with Dark-eyed Junco to produce hybrids

Old World Sparrows

  • Two species from the Old World (Europe) that have established themselves in North America
  • Characterized by shorter legs and thicker bills than native sparrows 

House Sparrow

  • Identifiers
    • Gray crown
    • Chestnut nape
    • Black bib
    • Black bill
  • Call
    • Simple song of one or a series of "cheep" or "chirrup" notes
  • Habitats
    • Populated areas
    • Parking lots
  • Additional
    • Also known as English Sparrow

Finches

  • Seedeaters with undulating (smooth, wavelike motion) flight
  • Many nest in far north and in the fall flocks of "winter finches" may migrate south

Purple Finch

  • Identifiers
    • Not purple, but rose over most of body, brightest on head and rump
    • Back is streaked
    • Tail strongly notched
  • Call
    • "Hear me? See me? Here I am."
  • Habitat
    • Coniferous or mixed woodland borders, suburbs, parks, orchards
  • Additional
    • "Sparrow dipped in raspberry juice." -Roger Peterson

House Finch

  • Identifiers
    • Brown cap
    • Front of head, bib, and rump typically red but can vary to orange or yellow
    • Bib clearly set off from streaked underparts
    • Tail is squarish
  • Call
    • Variation of three-pitch notes, ends with nasal "wheer"
    • Whistled "wheat"
  • Habitat
    • Desert lowlands and slopes
    • Range has rapidly expanded to the west since 1940s, especially in towns

American Goldfinch

  • Identifiers
    • Bright yellow with black cap
    • Black wings with white bars and yellow shoulder patch
    • Uppertail and undertail coverts white
    • Tail black and white
  • Call
    • Quite "po-ta-to-chip"
  • Habitat
    • Weedy fields, open second-growth woodlands, roadsides, especially in thistles and sunflowers

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