Maximizing feeding efficiency and minimizing time exposed to predators: a trade-off in the Black-capped Chickadee
1 Black-capped chickadee
(Poecile atricapilla) 9 4.
Geographic variation in Black-capped Chickadee
songs and singing behavior.
We took measurements of: American Goldfinches (n = 50 specimens measured), Black-capped Chickadees
(n = 26), Common Grackles (n = 57), Downy Woodpeckers (Picoides pubescens, n = 35), House Finches (Haemorhous mexicanus, n = 25), House Sparrows (Passer domesticus, n = 50), Mourning Doves (Zenaida macroura, n = 21), Northern Cardinals (n = 50), Tufted Titmice (Baeolophus bicolor, n = 23), and White-breasted Nuthatches (Sitta carolinensis, n = 26).
in the Willamette Valley are present throughout the year.
Curry, Villanova University, "Variation in DRD4, a gene associated with temperament, in Carolina and Black-capped chickadees
Species numbers and treatment at which fatalities occurred were: two Dark-eyed Juncos (Junco hyemalis) at the clear glass control, two Black-capped Chickadees
(Poecile atricapillus), three Northern Cardinals (Cardinalis cardinalis), and one House Finch (Carpodacus mexicanus) at the reflective glass control, and two Black-capped Chickadees
, one Ruby-crowned Kinglet (Regulus calendula), one Hermit Thrush (Catharus guttatus), one Gray Catbird (Dumetella carolinensis), three Northern Cardinals, two Dark-eyed Juncos, and one American Goldfinch (Spinus tristis) at the ORNILUX Mikado.
Responses of Black-capped Chickadee
flocks to predators.
Shortly thereafter a Black-capped Chickadee
(Poecile atricapillus) landed nearby and mobbed the nighthawk.
Shopping District Boston's Hay Market Square Kansas City's Country Club Plaza, America's first shopping district Historically Significant Journey Paul Revere's ride through Lewis and Clark's Boston transcontinental expedition State Bird Black-capped chickadee
Bluebird Vineyard Martha's Vineyard - named Missouri's historic for the wild grapes that were wine country - found growing on the island recognized as when discovered.
olivaceus W Blue Jay Cyanocitta cristata S American Crow Corvus brachyrhynchos N/A Horned Lark Eremophila alpestris S Black-capped Chickadee
Poecile atricapillus W Red-breasted Nuthatch Sitta canadensis W White-breasted Nuthatch S.
In addition to the Northern Cardinal and American Goldfinch, other plush Audubon birds that have the highest demand include the Common Loon, Red-winged Blackbird, Baltimore Oriole, Blue Jay, American Robin, Black-capped Chickadee
, Eastern Bluebird and Western Meadowlark.
Even the families of such storied cachers as the nutcrackers and the black-capped chickadee
contain species that manage only halfhearted food storage, if that.
We predicted the more abundant Black-capped Chickadee
might restrict rarer Boreal Chickadees to confined regions of microhabitats.
Childhood at its best is full of such small adventures - hiking to the top of Mount Wachusett, learning to tell a black-capped chickadee
from a white-throated sparrow, sharing a secret hiding spot in the hollow of a tree with a best friend.