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Full-Text Articles in Animal Sciences
Acoustic Communication Of The Trumpeter Swan (Cygnus Buccinator), Maureen Patton-Gross, Millicent S. Ficken
Acoustic Communication Of The Trumpeter Swan (Cygnus Buccinator), Maureen Patton-Gross, Millicent S. Ficken
Field Station Bulletins
Six cygnet calls, eight adult calls, and one nonvocal sound of Trumpeter Swans are categorized and described. Calls vary greatly in complexity. Many form graded series, while others are discrete. Most of the cygnet calls are involved with soliciting aid from a parent, while adult calls have a wider variety of functions.
Female Dominance Among Purple Finches (Carpodacus Purpureus) In Winter Flocks, James W. Popp
Female Dominance Among Purple Finches (Carpodacus Purpureus) In Winter Flocks, James W. Popp
Field Station Bulletins
The dominance of females over males in winter flocks is rare. In this paper, I report on female dominance over males in winter flocks of Purple Finches (Carpodacus purpureus). Females won nearly all observed intersexual encounters and also differed from males in their use of agonistic displays. Female dominance has been reported for other species in the genus Carpodacus, but reasons for the occurrence of female dominance in this genus are unknown.
Recognition Of Brood-Mate Vocalizations By Northern Bobwhite (Colinus Virginianus) Chicks, Susan St. Clair Raye
Recognition Of Brood-Mate Vocalizations By Northern Bobwhite (Colinus Virginianus) Chicks, Susan St. Clair Raye
Field Station Bulletins
Unrelated bobwhite quail (Colinus virginianus) chicks were hatched together and raised together. Each chick was tested in an arena with tape recorded separation, contentment and distress calls from a brood-mate and an unfamiliar chick of the same age. Chicks at one, six and 19 days of age gave significantly more separation calls in response to the separation calls of their brood-mates than they gave in response to the separation calls of the strange chicks. Since the chicks were not related, this ability to recognize brood-mate vocalizations is probably learned. Sibling recognition in quail might function in inbreeding avoidance.
The Dominance Hierarchy Of The Black-Capped Chickadee And It's Relation To Breeding Territory And Frequency Of Visitation To An Artificial Food Source, Craig Thompson
Field Station Bulletins
A peck-dominant type of dominance hierarchy was demonstrated in a group of twenty-one Black-capped Chickadees and was consistent with what is expected of this species of Paridae at the interflock level. No significant correlations were found between dominance and frequency of visitation to the study feeder, between dominance and distance from feeder to 1980 breeding territory, and between distance to territory and frequency of visitation.
Behavioral Studies Of Black-Capped Chickadees At The Uwm Field Station, Millicent S. Ficken
Behavioral Studies Of Black-Capped Chickadees At The Uwm Field Station, Millicent S. Ficken
Field Station Bulletins
This report summarizes studies of the behavior of Black-capped Chickadees (Parus atricapillus) conducted at the UWM Field Station since 1970. Vocalizations and responses to predators are emphasized. Chickadees are very social and their calls are more complex than those of non-social avian species.
Black-Capped Chickadee Behavior-Fledging To Dispersal, Mary Van Male
Black-Capped Chickadee Behavior-Fledging To Dispersal, Mary Van Male
Field Station Bulletins
Most studies of the family life of young birds after they leave the nest have been descriptive and anecdotal with little quantitative behavioral data, despite the many interesting problems involved in interactions of the members of a family. The objectives of this study were to determine: 1) the behavior of parents and young Black-capped Chickadees (Parus atricapillus) at the time of leaving the nest, 2) how the parents and young behave towards each other during the period when the young are dependent on their parents, 3) the factors responsible for the final disruption of the family. Since aggression was anticipated …
Communication In Ground Squirrels, Robert Ryshke
Communication In Ground Squirrels, Robert Ryshke
Field Station Bulletins
Thirteen-lined ground squirrels (Citellus tridecemlineatus) are among the more abundant and conspicuous Midwestern mammals, yet surprisingly little is known of their behavior under natural conditions, except for the study of McCarley (1966) which concentrated on population dynamics. The object of my study was to describe the general behavior of the ground squirrel, with particular emphasis on postures and vocalizations used in communication. Communication occurs whenever the behavioral activities of one animal affect the activities of another. Communication among members of a group is an essential part of social life, reducing aggression in animal groups as well as synchronizing reproductive activities.