Results 141 to 150 of about 4,195 (192)

Accumulation of organochlorine contaminants in double-crested cormorants

Environmental Pollution, 1993
Cormorant eggs and lipid samples from juvenile Cormorants were analyzed for 14 organochlorine contaminants. Low concentrations (geometric mean < 0.05 microg/g) of hexachlorobenzene (HCB), lindane, oxy-chlordane, heptachlor epoxide, dieldrin, endrin, mirex, DDD and DDT in eggs primarily reflected the wintering-ground origin of organochlorine ...
J D, Somers   +3 more
openaire   +2 more sources

Progenicide in Double-Crested Cormorants

The Condor, 1980
Adult Double-crested Cormorants (Phalacrocorax auritus) have been known to attack (but rarely kill) strange, sick, or dying cormorant chicks (Lewis, H.L., The natural history of the Double-crested Cormorant, Ru-Mi-Lou Books, Ottawa, 1929). During the first week of July 1975, on Mandarte Island, British Columbia, Canada, I observed five adult cormorants
openaire   +1 more source

Changing Populations of Double-Crested Cormorants

Colonial Waterbirds, 1995
-The Double-crested Cormorant (Phalacrocorax auritus) has a wider range in North America than any of the five other breeding cormorants and is the only species to occur extensively in the interior as well as on the coasts. Breeding birds are currently known in 40 of the 50 States of the United States, all 10 Canadian Provinces, and in Mexico, Cuba and ...
openaire   +1 more source

Energy Allocation Of Nestling Double-crested Cormorants.

1973
PhD ; Zoology ; University of Michigan, Horace H. Rackham School of Graduate Studies ; http://deepblue.lib.umich.edu/bitstream/2027.42/190490/2/7415709 ...
openaire   +2 more sources

Double-Crested Cormorants along the Upper Mississippi River

Colonial Waterbirds, 1995
-The Upper Mississippi River is an important habitat corridor for migratory birds and other wildlife, and it supports an important commercial and sport fishery. A study was initiated by the U.S. Fish and Wildlife Service in 1991 to describe Double-crested cormorant (Phalacrocorax auritus) distribution and abundance on the Upper Mississippi River ...
openaire   +1 more source

Double-crested Cormorant (Nannopterum auritum)

2021
Brian S. Dorr   +2 more
openaire   +1 more source

Double-crested Cormorant (Phalacrocorax auritus)

The Birds of North America Online, 2014
Brian S. Dorr   +2 more
openaire   +1 more source

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