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41. PROTOGYNY IN AUTUMN MIGRATION: DO MALE BIRDS "PLAY CHICKEN"?
PROTANDRY, THE EARLIER arrival of males than of females on breeding areas, occurs in diverse taxa; accordingly, "arrival" can mean metamorphic emergence, cessation of hibernation, ... (PERIODICAL ARTICLE)
42. SEXUAL PREFERENCES OF FEMALE BROWN-HEADED COWBIRDS (MOLOTHRUS ATER) FOR...
OVER THE PAST two decades, many studies have attempted to assess the importance of female choice and sexual selection in determining repertoire size in songbirds, ... (PERIODICAL ARTICLE)
43. Partners in Flight North American Landbird Conservation Plan
Partners in Flight North American Landbird Conservation Plan.-T. D. Rich, C. J. Beardmore, H. Berlanga, P. J. Blancher, M. S. W. Bradstreet, G. S. Butcher, ... (PERIODICAL ARTICLE)
44. MOLECULAR EVIDENCE FOR RECENT RADIATION IN SOUTHERN HEMISPHERE MASKED GULLS
STUDIES OF THE systematics of gulls have been hindered by a high incidence of hybridization (Pierotti 1987, Grant and Grant 1992, Bell 1996), remarkably similar ... (PERIODICAL ARTICLE)
45. ACOUSTIC PROPERTIES OF TWO URBAN SONG DIALECTS IN THE ORANGE-TUFTED SUNBIRD...
HEADNOTE ABSTRACT.- Biologically important acoustic signals must be transmitted from a signaler to a receiver. Over distance, however, sounds may undergo modification through attenuation, degradation, ... (PERIODICAL ARTICLE)
46. DISPERSAL BY JUVENILE AMERICAN CROWS (CORVUS BRACHYRHYNCHOS) INFLUENCES...
HEADNOTE ABSTRACT.- American Crow (Corvus brachyrhynchos) populations are increasing across North America, often at high rates in urban areas. A monthly survey of American Crows ... (PERIODICAL ARTICLE)
47. FEEDING ECOLOGY OF CANADA GEESE (BRANTA CANADENSIS INTERIOR) IN SUB-ARCTIC...
HEADNOTE ABSTRACT.- The diet of adult Canada Geese (Branta canadensis interior) and their goslings was determined during the brood-rearing season in a freshwater tundra habitat ... (PERIODICAL ARTICLE)
48. SEX DIFFERENCES IN SINGING AND DUETTING BEHAVIOR OF NEOTROPICAL...
HEADNOTE ABSTRACT.- In many tropical bird species, males and females sing together in coordinated vocal duets. Although studies of duetting present unique opportunities for understanding ... (PERIODICAL ARTICLE)
49. SEXUAL PREFERENCES OF FEMALE BROWN-HEADED COWBIRDS (MOLOTHRUS ATER) FOR...
HEADNOTE ABSTRACT.- The importance of repertoire size to mate choice by female songbirds has been widely debated but has not been addressed in Brown-headed Cowbirds ... (PERIODICAL ARTICLE)
50. ALARM CALLING IN SRI LANKAN MIXED-SPECIES BIRD FLOCKS
HEADNOTE ABSTRACT.- Vocal alarm calls are important to the vigilance and likely the organization of mixed-species flocks, but community-wide studies of alarm calling in flocks ... (PERIODICAL ARTICLE) | |
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41-50 (of 88) related articles
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