(n.) Any bird of the genus Junco, which includes several species of North American finches; -- called also snowbird, or blue snowbird.
Example Sentences:
(1) The aggressive tendencies of male dark-eyed juncos Junco hyemalis did not differ significantly following deprivation from food for 20 and 60 min.
(2) Dark-eyed Juncos (Junco hyemalis) were maintained on one of three semi-synthetic diets, differing only in their sulphur amino acid content.
(3) Species of the genus Junco are polymorphic for chromosomes 2 and 5.
(4) A male migratory songbird (dark-eyed junco, Junco hyemalis) was used as a model for studies on the influence of testosterone (T) on feeding, and on interactive effects on this behavior between T and the opioid antagonist naloxone hydrochloride (Nal).
(5) Male, dark-eyed juncos, Junco hyemalis, were held in captivity under conditions simulating winter temperature and photoperiod.
(6) T-treated juncos exhibited a decreased sensitivity to the anorexic influence of Nal administration, demonstrating that T interacts with opioids to control food consumption.
(7) Diplotene karyotypes of 61 adult male Dark-eyed Juncos, Junco hyemalis, were analyzed in order to determine the basis of the polymorphisms.
(8) To assess whether alterations in the normal pattern of testosterone (T) secretion might be beneficial or detrimental, we studied a breeding population of dark-eyed juncos in which we elevated T experimentally and measured its effect on potential correlates of fitness.
(9) Changes in deposition and the utilization of lipids during one night of migratory activity (nocturnal physical activity) were investigated in dark-eyed Juncos (Junco hyemalis) held in large outdoor aviaries.
(10) During vernal migration (May), captive Juncos were sampled at the beginning and conclusion of one night of nocturnal restlessness.
(11) We used two phylogenetically distant avian species (dark-eyed junco, hyemalis, Passeriformes; domestic pigeon, Columba livia, Columbiformes) to determine the immunocytochemical distribution of opioid (leucine-enkephalin, dynorphin B) and non-opioid (adrenocorticotropic hormone) peptides in the n. intercollicularis (ICo), a midbrain region which plays a central role in the control of vocalizations.
Snowbird
Definition:
(n.) An arctic finch (Plectrophenax, / Plectrophanes, nivalis) common, in winter, both in Europe and the United States, and often appearing in large flocks during snowstorms. It is partially white, but variously marked with chestnut and brown. Called also snow bunting, snowflake, snowfleck, and snowflight.
(n.) Any finch of the genus Junco which appears in flocks in winter time, especially J. hyemalis in the Eastern United States; -- called also blue snowbird. See Junco.
(n.) The fieldfare.
Example Sentences:
(1) All the spirometric tests (FVO, FEV1 and FMEF 25-75) were performed in a standard way as recommended by American Thoracic Society in Snowbird Meeting in 1979.
(2) With temperatures exceeding 38C (100F) the usual "snowbird" visitors from Canada who winter here have mostly gone, leaving an eclectic, permanent population of Latino workers and wealthy gay people – and Republicans.
(3) Based on analysis of more than 2,500 forced vital capacity (FVC) maneuvers, we examined 2 aspects of the standards for spirometry recommended by the 1977 Snowbird Workshop concerning the timing of the FVC maneuver.
(4) Between sessions he would retire to his workshop and devise guitar arrangements of pop and jazz standards or of other people's hits, from Anne Murray's Snowbird to Boots Randolph's Yakety Sax.
(5) Of course, in the winter you get the US snowbirds in their campervans and tie-dye T-shirts, but although there’s more development these days, it’s still mostly wild.