BIMODAL OCCURRENCE OF BREEDING IN AN EQUATORIAL SPARROW.
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Journal Article↗
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Capacity for photoperiodic response and endogenous factors in the reproductive cycles of an equatorial sparrow.
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Animals↗
Extraretinal light perception in the sparrow. I. Entrainment of the biological clock.
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Animals↗
Extraretinal light perception in the sparrow. II. Photoperiodic stimulation of testis growth.
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Blindness↗
Salmonella typhimurium infection in house sparrows.
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Animals↗
Daily entrainment of the photoinducible phases for photostimulation of the reproductive system in the sparrows, Zonotrichia albicollis and Passer domesticus.
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Adrenal Glands↗
The effect of the postjuvenal molt in the house sparrow on infestations of the quill mite, Syringophiloidus minor (Berlese) (Acarina: Syringophilidae).
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Animals↗
Seasonal abundance of Dermanyssus hirundinis and D. americanus (Mesostigmata: Dermanyssidae) in nests of the house sparrow.
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Animals↗
The annual cycle of plasma irLH and steroid hormones in feral populations of the white-crowned sparrow, Zonotrichia leucophrys gambelii.
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Animals↗
Responses of photosensitive and photorefractory male white-crowned sparrows (Zonotrichia leucophrys gambelii) to synthetic mammalian luteinizing hormone releasing hormone (syn-LHRH).
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Animals↗
Electrophoretic variations of proteins in the tree sparrow, Passer montanus.
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Animals↗
Human antibodies against antigens of the sparrow, blackbird, weaver finch, canary, budgerigar, pigeon and hen using the indirect immunofluorescent technique.
Detection of antibodies against various birds, particularly against exotic birds, can be facilitated using the sensitive immunofluorescent technique on avian fixed-intestine cryostat sections. Different fluorescent patterns corresponding to different human anti-avian antibodies have been observed. Sixty of 100 human sera containing antibodies against one avian species, predominantly pigeon, reacted also with all other avian species intestines; the remaining forty were more specific and reacted with a few species only. Cross reactions with antigens in song bird intestines indicated the presence of a broad spectrum of antibodies in patients with bird fancier's lung.
Animals↗
Behavior of sparrows of the genus Zonotrichia, in orientation cages during the lunar cycle.
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Animals↗
Effects of reserpine on the white-crowned sparrow (Zonotrichia leucophrys gambelii).
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Animals↗
Isospora lacazei (Labbe, 1893) and I. chloridis sp. n. (Protozoa: Eimeriidae) from the English sparrow (Passer domesticus), greenfinch (Chloris chloris) and chaffinch (Fringilla coelebs).
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Animals↗
Blood and tissue protozoa of the English sparrow (Passer domesticus domesticus) in Galveston, Texas.
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Animals↗
Neurobiology of avian social organization. Effects of lateral septum lesions in a territorial songbird, the field sparrow (Spizella pusilla), and a colonial songbird, the zebra finch (Taeniopygia guttata).
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Animals↗
Circadian phase of sparrows: control by light and dark.
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Acclimatization↗