(1) Corticotropin-releasing factor (CRF) was localized in the brains of two passerine species, the European starling (Sturnus vulgaris) and the song sparrow (Melospiza melodia), by means of immunohistochemistry.
(2) Adult trumpeters and both young and old passerines housed in the same exhibit were not affected.
(3) The low dose of reserpine in the passerine (common myna and bulbul) birds resulted in 40-84% reduction of both norepinephrine (NE) and epinephrine (E) from the adrenal glands irrespective of its nerve supply.
(4) Concentrations of mercury in passerine birds fed diets containing 40 ppm methylmercury were similar in tissues of birds that died from mercury poisoning and in those that were sacrificed after half the group had died.
(5) Paramyxovirus type 2(PMV-2) (Yucaipa-like), unreported in free-flying passerines in the Americas, was recovered from a finch, wren, and chicken, each from a different location.
(6) Song syntax, defined as orderly temporal arrangements of acoustic units within a bird song, is a conspicuous feature of the songs of many species of passerine birds.
(7) Gonadotropin-releasing hormone (GnRH) was detected in the brains of passerine birds, a recently evolved and diverse avian group.
(8) In a group of birds (passerines and non-passerines) body weight was found to be highly correlated with the length of the humerus and with the area of the foramen magnum.
(9) Antibodies to Uukuniemi viruses are found in passerine birds, small mammals, cattle and man.
(10) These values resemble diagnostic levels known for two species of passerine birds, but they exceed published levels for two free-tailed bats from Carlsbad Caverns, New Mexico.
(11) The results agreed with an empirical study on body weight in a passerine bird, the Great Tit, where only the asymptote displayed heritable variation and more genetic variance was expressed under good conditions.
(12) The present study determined the volume of the hippocampal complex and the telencephalon in 3 food-storing families and in 10 non-food-storing families and subfamilies of passerines.
(13) These data suggest that monoaminergic neurotransmitters may be involved in the mediation of steroid-dependent changes in singing behavior in passerine birds.
(14) These data show that, in contrast to some other species of passerine birds, the onset of photorefractoriness does not become fixed before the testes have undergone considerable development, and that the photoperiodic conditions experienced at the end of the testicular growth phase are still effective in determining the precise time of onset of photorefractoriness.
(15) Among the passerine birds, species that store food have an enlarged hippocampal region (dorso-medial cortex), relative to brain and body size, when compared with the non-storers.
(16) The left kidney of Australian passerines was significantly longer, on average, than the right.
(17) Investigation of the effect of variation in background abundance on measures of energy expenditure for small passerines (20 g) revealed that employing estimates, instead of direct measurements, had a minor influence over an experimental period of 1 day but could potentially introduce errors as large as 54% over a 2-day period.
(18) The species consisted of two passerines (songbirds), the European starling (Sturnus vulgaris) and the song sparrow (Melospiza melodia), and one galliform, the Japanese quail (Coturnix coturnix japonica).
(19) Borrelia burgdorferi, the causative agent of Lyme disease, was isolated from the liver of a passerine bird, Catharus fuscescens (veery), and from larval Ixodes dammini (tick) feeding on Pheucticus ludovicianus (rose-breasted grosbeak) and Geothlypis trichas (common yellowthroat).
(20) Free-flying passerine migrants respond to natural fluctuations in the earth's magnetic field.
Skylark
Definition:
(n.) A lark that mounts and sings as it files, especially the common species (Alauda arvensis) found in Europe and in some parts of Asia, and celebrated for its melodious song; -- called also sky laverock. See under Lark.
Example Sentences:
(1) We were excited and looking forward to having a field behind with cow parsley and skylarks.
(2) I once saw a merlin above Burgh Castle spiral in a relentless tight corkscrew as it pursued a skylark that steepled until it was only a dust mote.
(3) The skylark’s summer song is reduced in winter to spits of rage, each broken chirrup rendered to human ears as “get lost!” or something far ruder.
(4) Common bird species such as sparrow and skylark facing decline in Europe Read more The report will embolden campaigners opposed to plans by the European Commission to review two key pieces of environmental legislation - the birds and habitats directives.
(5) The skylark is not the only bird whose sound has influenced generations of poets, writers and composers.
(6) But when future generations download the recordings, and listen to skylarks and nightingales, cuckoos and turtle doves, will they feel a twinge of sadness that these species are no longer with us?
(7) "The fans here are rabid," wrote a user called Skylark .
(8) It seemed as though the fields were shedding skylarks.
(9) As the skylarks fly away, I become aware of a rapid movement along the tideline.
(10) Click here to watch skylark song video Poets and composers have long been mesmerised by the skylark's song, including Shelley, whose Ode to a Skylark opens with the unforgettable pronouncement: " Hail to thee, blithe spirit!
(11) Skylarks are smallish, brown birds with a perky crest and streaky plumage.
(12) Species with larger brain areas that were capable of producing a higher repertoire of syllables included the common blackbird (108 syllables) and the Eurasian skylark (341 syllables).
(13) After several months padding along under those great blue skies, with skylarks apparently forever overhead, came the great test: six weeks alone across the Gobi desert with just my three camels – no phone, no contact with the outside world, no one to know even if I was still alive.
(14) David Adam on the decline of Britain's skylarks and other bird species Read more Two skylarks among a flock of six had begun a chase-my-tail routine over a field of winter wheat.
(15) Science has demonstrated that each skylark needs to find the equivalent of 200 grains of wheat a day to survive cold weather, but here they were apparently frittering away their energy.
(16) Numbers of skylark and ortolan bunting, a songbird illegally hunted and eaten whole in France, have fallen by around half.
(17) Yet no matter how fast and adroitly it jinked and weaved, the pursuing bird held to its tail, maintaining a two-skylark-length distance between them, never closing, never lagging, seeming content with matching every turn of its harried opponent.
(18) The EU State of Nature report, seen by the Guardian, paints a picture of dramatic decline among once common avian species such as the skylark and turtle dove mainly as a result of agricultural pressures, and also warns that ecosystems are struggling to cope with the impact of human activity.
(19) For us, a winter’s day may not have the exhilaration of the skylark’s steepling song flight, but we still thrill to vignettes from this glorious show-off.
(20) In their short lives skylarks had seen it all before, the frequent transformations of their landscapes.