Reimchen, T. E. and Douglas, S. 1980. Observations of loons (Gavia immer and
G. stellata) at a bog lake on the
Abstract A small muskeg lake on the Queen Charlotte Islands was frequented in
summer by up to 59 Common Loons (Gavia immer) and 19 Red-throated Loons
(G. stellata), mostly non-breeding adults. The former occupied the deeper
central areas and were most abundant near mid-day, while the latter preferred
the shallows and were present from early evening until dawn. Although
interactions between the two species were rare, Common Loons were dominant to
Red-throated Loons except when the latter were close to shore. During peak
abundance, Common Loons congregated in large groups; Red-throated Loons usually
occurred in pairs. Common Loons used the lake primarily for foraging, with peak
activity in mid-morning and at dusk; the dominant fish spcies present was
Threespine Stickleback (Gasterosteus aculeatus). Red-throated Loons obtained
much of their food during daily visits to the ocean and foraged only
intermittently on the lake. Dive durations in shallow water were approximately
30 s for both species and, in open water, 40 s for Common Loons.. (Full Text)
Reimchen, T. E. and Douglas, S. 1984. Seasonal and diurnal abundance of aquatic birds on the Drizzle Lake Reserve, Queen Charlotte Islands, British Columbia. Canadian Field-Naturalist 98: 22-28. (Full Text)
Reimchen, T. E. and Douglas, S. 1984. Feeding schedule and daily food
consumption in Red-throated Loons (Gavia stellata) over the prefledging period.
Auk 101: 593-59009. Abstract We describe parental feeding activities of
Red-throated Loons (Gavia stellata ) throughout the prefledging period at two
freshwater nesting territories in coastal
Reimchen, T. E. and Douglas, S. 1985. Differential contribution of the sexes to prefledged young in Red-throated Loons. Auk 102: 198-201. (Full Text)
Douglas, S. D. and Reimchen, T. E. 1988. Reproductive phenology and early
survivorship in Red-throated Loons (Gavia stellata). Canadian Field-Naturalist,
102(4): 701-704. Abstract Red-throated Loons, Gavia stellata,
occupied breeding territories on the Queen Charlotte Islands,
Douglas, S. D. and Reimchen, T. E. 1988. Habitat characteristics and
population estimate of breeding Red-throated Loons (Gavia stellata) on the
Reimchen
TE and Douglas SD. 2021. Loon abundance and behaviour over four decades
at a remote ecological reserve on Haida Gwaii, British Columbia,
Canada. Can. Field-Naturalist 135: 28-38. (Full Text)
Douglas
SD and Reimchen TE. 2021. Vocal repertoire, harmonic structure, and
behavioural context in Red-throated Loon (Gavia stellata). Can
Field-Naturalist 135(2): 165–180. (Full text) https://doi.org/10.22621/cfn.v135i2.2569