Thomas Custer (Former Employee)
Science and Products
Filter Total Items: 185
Wading birds as biological indicators: 1975 colony survey
No abstract available.
Authors
Thomas W. Custer, Ronald G. Osborn
Wading birds as biological indicators: 1975 colony survey
No abstract available.
Authors
Thomas W. Custer, Ronald G. Osborn
The use of feeding habitat by a colony of herons, egrets, and ibises near Beaufort, North Carolina
Nine species of herons were followed to their feeding sites from a nesting colony near Beaufort, North Carolina, by airplane. Except for the Cattle Egret, which flew exclusively to fields and dumps, all other species flew mainly to saltmarsh habitat. In addition, habitats were selected in relation to tidal depth and it appears, at least for the Great Egret, that low tide habitats were preferred.
Authors
Thomas W. Custer
Demographic features of a lapland longspur population near Barrow, Alaska
Breeding density, clutch size, hatching and fledging success, and survival of adult Lapland Longspurs (Calcarius lapponicus) were monitored over a 7-year period near the Naval Arctic Research Laboratory, Barrow, Alaska. Nesting begins as soon as the tundra starts to clear of snow and appears to be timed so that the young of the year reach independence before the end of adult insect emergence. Arth
Authors
Thomas W. Custer, Frank A. Pitelka
Snowy owl predation on lapland longspur nestlings recorded on film
During the summer of 1971 I investigated the breeding biology of the Lapland Longspur, Calcarius lapponicus, near Barrow, Alaska. To obtain data on incubation and feeding patterns of nesting longspurs, time-lapse cameras (Minolta Autopak-8 D6 super-8 movie cameras equipped with an Intervalometer-P time-lapse device) were positioned at several nests throughout the nesting season with an exposure i
Authors
T. W. Custer
Science and Products
Filter Total Items: 185
Wading birds as biological indicators: 1975 colony survey
No abstract available.
Authors
Thomas W. Custer, Ronald G. Osborn
Wading birds as biological indicators: 1975 colony survey
No abstract available.
Authors
Thomas W. Custer, Ronald G. Osborn
The use of feeding habitat by a colony of herons, egrets, and ibises near Beaufort, North Carolina
Nine species of herons were followed to their feeding sites from a nesting colony near Beaufort, North Carolina, by airplane. Except for the Cattle Egret, which flew exclusively to fields and dumps, all other species flew mainly to saltmarsh habitat. In addition, habitats were selected in relation to tidal depth and it appears, at least for the Great Egret, that low tide habitats were preferred.
Authors
Thomas W. Custer
Demographic features of a lapland longspur population near Barrow, Alaska
Breeding density, clutch size, hatching and fledging success, and survival of adult Lapland Longspurs (Calcarius lapponicus) were monitored over a 7-year period near the Naval Arctic Research Laboratory, Barrow, Alaska. Nesting begins as soon as the tundra starts to clear of snow and appears to be timed so that the young of the year reach independence before the end of adult insect emergence. Arth
Authors
Thomas W. Custer, Frank A. Pitelka
Snowy owl predation on lapland longspur nestlings recorded on film
During the summer of 1971 I investigated the breeding biology of the Lapland Longspur, Calcarius lapponicus, near Barrow, Alaska. To obtain data on incubation and feeding patterns of nesting longspurs, time-lapse cameras (Minolta Autopak-8 D6 super-8 movie cameras equipped with an Intervalometer-P time-lapse device) were positioned at several nests throughout the nesting season with an exposure i
Authors
T. W. Custer