1979 …2018
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Research Output 1979 2018

1987

Competition for territories in red-winged blackbirds: Is resource-holding potential realized?

Eckert, C. G. & Weatherhead, P. J., May 1 1987, In : Behavioral Ecology and Sociobiology. 20, 5, p. 369-375 7 p.

Research output: Contribution to journalArticle

Agelaius phoeniceus
resource
competitive ability
polygyny
mate choice

Field tests of information transfer in communally roosting birds

Weatherhead, P. J., Jan 1 1987, In : Animal Behaviour. 35, 2, p. 614-615 2 p.

Research output: Contribution to journalArticle

roosting
information exchange
bird
birds
testing

Ideal dominance distributions: a test using red-winged blackbirds (Agelaius phoeniceus)

Eckert, C. G. & Weatherhead, P. J., Jan 1 1987, In : Behavioral Ecology and Sociobiology. 20, 1, p. 43-52 10 p.

Research output: Contribution to journalArticle

Agelaius phoeniceus
testing
marshes
marsh
highlands

Influence of population size on habitat use by territorial male red- winged blackbirds in agricultural landscapes

Clark, R. G. & Weatherhead, P. J., Jan 1 1987, In : Auk. 104, 2, p. 311-315 5 p.

Research output: Contribution to journalArticle

Agelaius phoeniceus
habitat use
population size
agricultural land
habitat

Interactions among females in polygynous yellow-headed blackbirds

Lightbody, J. P. & Weatherhead, P. J., Jan 1 1987, In : Behavioral Ecology and Sociobiology. 21, 1, p. 23-30 8 p.

Research output: Contribution to journalArticle

harem
reproductive success
nest
nests
Agelaius phoeniceus
mate choice
mating behavior
breeding
nestling

Owners, floaters and competitive asymmetries among territorial red-winged blackbirds

Eckert, C. G. & Weatherhead, P. J., Jan 1 1987, In : Animal Behaviour. 35, 5, p. 1317-1323 7 p.

Research output: Contribution to journalArticle

Agelaius phoeniceus
asymmetry
ownership
social dominance
turnover

Polygyny in the yellow-headed blackbird: female choice versus male competition

Lightbody, J. P. & Weatherhead, P. J., Jan 1 1987, In : Animal Behaviour. 35, 6, p. 1670-1684 15 p.

Research output: Contribution to journalArticle

polygyny
mating behavior
mate choice
harem
reproductive success

The paradox of age-related dominance in brown-headed cowbirds ( Molothrus ater).

Weatherhead, P. J. & Teather, K. L., Jan 1 1987, In : Canadian journal of zoology. 65, 10, p. 2354-2357 4 p.

Research output: Contribution to journalArticle

Molothrus ater
yearlings
social status
1986

Condition of bias of hunter-shot mallards ( Anas platyrhynchos).

Greenwood, H., Clark, R. G. & Weatherhead, P. J., Jan 1 1986, In : Canadian Journal of Zooology. 64, 3, p. 599-601 3 p.

Research output: Contribution to journalArticle

Anas platyrhynchos
waterfowl
ducks
hunters
analysis

Numerical responses of red-winged blackbird populations to changes in regional land-use patterns.

Clark, R. G., Weatherhead, P. J., Greenwood, H. & Titman, R. D., Jan 1 1986, In : Canadian journal of zoology. 64, 9, p. 1944-1950 7 p.

Research output: Contribution to journalArticle

numerical response
Agelaius phoeniceus
land use
maize
corn

Site infidelity in song sparrows

Weatherhead, P. J. & Boak, K. A., Jan 1 1986, In : Animal Behaviour. 34, 5, p. 1299-1310 12 p.

Research output: Contribution to journalArticle

Passeriformes
song
animal communication
philopatry
site fidelity

The effect of fine-scale variations in agricultural land use on the abundance of red-winged blackbirds.

Clark, R. G. & Weatherhead, P. J., Jan 1 1986, In : Canadian journal of zoology. 64, 9, p. 1951-1955 5 p.

Research output: Contribution to journalArticle

Agelaius phoeniceus
agricultural land
land use
habitat
habitats
1985

Habitat selection in an Ontario population of the snake, Elaphe obsoleta.

Weatherhead, P. J. & Charland, M. B., Jan 1 1985, In : Journal of Herpetology. 19, 1, p. 12-19 8 p.

Research output: Contribution to journalArticle

Elaphe obsoleta
snake
habitat preferences
habitat selection
snakes

Variability in behavioural response of wintering black ducks to increased energy demands.

Brodsky, L. M. & Weatherhead, P. J., Jan 1 1985, In : Canadian journal of zoology. 63, 7, p. 1657-1662 6 p.

Research output: Contribution to journalArticle

behavioral response
ducks
energy
energetics
preening
1984

Behavioral and ecological factors contributing to American black duck- mallard hybridization.

Brodsky, L. M. & Weatherhead, P. J., Jan 1 1984, In : Journal of Wildlife Management. 48, 3, p. 846-852 7 p.

Research output: Contribution to journalArticle

Anas platyrhynchos
drakes
hybridization
courtship
ducks

Behavioural thermoregulation in wintering black ducks: roosting and resting.

Brodsky, L. M. & Weatherhead, P. J., Jan 1 1984, In : Canadian journal of zoology. 62, 7, p. 1223-1226 4 p.

Research output: Contribution to journalArticle

roosting
thermoregulation
ducks
roost site
weather

Fecal sac removal by tree swallows: the cost of cleanliness.

Weatherhead, P. J., Jan 1 1984, In : Condor. 86, 2, p. 187-191 5 p.

Research output: Contribution to journalArticle

bird
nest boxes
birds
water birds
cost
1983

Secondary sex ratio adjustment in red-winged Blackbirds (Agelaius phoeniceus)

Weatherhead, P. J., Mar 1 1983, In : Behavioral Ecology and Sociobiology. 12, 1, p. 57-61 5 p.

Research output: Contribution to journalArticle

Agelaius phoeniceus
sex ratio
harem
infertility
egg

Two principal strategies in avian communal roosts.

Weatherhead, P. J., Jan 1 1983, In : American Naturalist. 121, 2, p. 237-243 7 p.

Research output: Contribution to journalArticle

food
information exchange
birds
perch
bird
1982

Indirect assessment of avian damage to agriculture.

Weatherhead, P. J., Tinker, S. & Greenwood, H., Jan 1 1982, In : Journal of Applied Ecology. 19, 3, p. 773-782 10 p.

Research output: Contribution to journalArticle

agriculture
damage
energetics
breeding season
census

Prey chracteristics of upland-breeding red-winged blackbirds, Agelaius phoeniceus.

Bendell, B. E. & Weatherhead, P. J., Jan 1 1982, In : Canadian Field-Naturalist. 96, 3, p. 265-271 7 p.

Research output: Contribution to journalArticle

Agelaius phoeniceus
nestling
Orthoptera
foliage
highlands

Risk‐taking by Red‐winged Blackbirds and the Concorde Fallacy

Weatherhead, P. J., Jan 1 1982, In : Zeitschrift für Tierpsychologie. 60, 3, p. 199-208 10 p.

Research output: Contribution to journalArticle

incubation
nestling
nest
nests
Agelaius phoeniceus

Seasonal, habitat, and sex-specific food habits of red-winged blackbirds: implications for agriculture.

McNicol, D. K., Robertson, R. J. & Weatherhead, P. J., Jan 1 1982, In : Canadian journal of zoology. 60, 12, p. 3282-3289 8 p.

Research output: Contribution to journalArticle

Agelaius phoeniceus
agriculture
bird
food
gender
Agelaius phoeniceus
roosting
sexual selection
Quebec
breeding

Spring roosting dynamics of red-winged blackbirds: biological and management implications.

Greenwood, H. & Weatherhead, P. J., Jan 1 1982, In : Canadian journal of zoology. 60, 5, p. 750-753 4 p.

Research output: Contribution to journalArticle

Agelaius phoeniceus
roosting
sexual selection
Quebec
breeding
1980

Altruism in the Savannah sparrow?

Weatherhead, P. J. & Robertson, R. J., Sep 1 1980, In : Behavioral Ecology and Sociobiology. 6, 3, p. 185-186 2 p.

Research output: Contribution to journalArticle

altruism
hatching
replacement
breeding
egg

Sexual recognition and anticuckoldry behaviour in savannah sparrows.

Weatherhead, P. J. & Robertson, R. J., Jan 1 1980, In : Canadian journal of zoology. 58, 6, p. 991-996 6 p.

Research output: Contribution to journalArticle

Nesting Behavior
Agonistic Behavior
Sparrows
Copulation
Biological Models
1979

Do savannah sparrows commit the concorde fallacy?

Weatherhead, P. J., Dec 1 1979, In : Behavioral Ecology and Sociobiology. 5, 4, p. 373-381 9 p.

Research output: Contribution to journalArticle

Sparrows
defense behavior
breeding season
nest
nests