He has been back in the Juncos
fold for well over a decade and is ably assisted in the twin-lead role by Kenny Barker on electric guitars.
As an initial test of whether junco
song has the potential to reliably signal population of origin, I investigated whether territorial male Dark-eyed Juncos
in eastern North America (Virginia) would respond differently to playbacks of song recorded in their local population (Junco
hyemalis carolinensis) and playbacks of song recorded in a geographically distant population of a different Dark-eyed Junco
hyemalis thurberi) in western North America (California).
Menezes will race in 2011 for Juncos
Racing, an elite racing team that finished 2010 with a driver's championship and a second place in the team standings.
example, in the Oregon complex of the west, juncos
have a dark hood,
Northern cardinals, dark-eyed juncos
, and song sparrows were collected on the study areas during November, December, January, and February of 1980-81, 1981-82, and 1982-83; white-throated sparrows were collected in 1982-83 only.
The company also received an FDA warning letter following a December 2008 inspection of the company's facility in Juncos
, which is a manufacturing location for the Neuromodulation, Diabetes and Cardiac Rhythm Disease Management businesses.
Finally, there is an astonishing 50-year milestone to celebrate this year for local favourites The Junco
The study of juncos
as a whole suggests that at least two traits are subject to selection in males: wing length and the proportion of white on the otherwise gray tail feathers ("tail white"; Fig.
In dark-eyed juncos
hyemalis), individuals that were sired by a male other than their mother's pair-bonded partner grew up to have higher reproductive success than did individuals whose mother stayed faithful to her partner.
Scientists from the University of Virginia, Charlottesville, report that extreme testosterone production--high or low --puts male dark-eyed juncos
at a disadvantage in both survival and reproduction outside their semi-monogamous breeding pairs.
In addition to the California program, the Amgen Award for Science Teaching Excellence is granted in Boulder County, Colorado; Jefferson County, Kentucky; and Juncos
, Puerto Rico, locations where Amgen has facilities.
Birds of particular note: a regularly nesting pair of red-shouldered hawks, dark-eyed juncos
, pine warblers and bald eagles along the river in winter.