Category Archive: Gaviiformes

May 22 2013

The Loon in the folklore of the Penobscot and Micmac Indians

The family of the divers and swimmers naturally claims a large share of the attention of the northern natives whose homes lie among the rivers and lakes where these large and conspicuous birds resort during the breeding season. Among them the loon stands forth rather sharply. His name “choice, admired bird”, shows the esteem which …

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Dec 27 2011

Feeding schedule and daily food consumption in red-throated loons (Gavia stellata) over the prefledging period

Red-throated Loon (Gavia stellata) Science Article 1 abstract We describe parental feeding activities of Red-throated Loons (Gavia stellata) throughout the prefledging period at two freshwater nesting territories in coastal British Columbia. The nesting lake contained resident fish populations, but adult loons fed marine fish to their young, making an average of 11 flights per day …

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Permanent link to this article: http://www.planetofbirds.com/red-throated-loon-article-1

Dec 27 2011

Effect of nest-site location on reproductive success of red-throated loons Gavia stellata

Red-throated Loon (Gavia stellata) Science Article 2 abstract The Red-throated Loon (Gavia stellata) nests on the shores of freshwater ponds of the Arctic tundra and forages in nearby marine waters. We examined the effects of distance of the nest from foraging waters and of microclimate at the nest site on the loon’s reproductive success. As …

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Permanent link to this article: http://www.planetofbirds.com/red-throated-loon-article-2

Dec 27 2011

Mercury exposure to Red-throated Divers [Gavia stellata] and Black-throated Divers [Gavia arctica] in Sweden

Red-throated Loon (Gavia stellata) Science Article 3 abstract We investigated concentration of mercury in eggs of Redthroated Diver [Gavia stellata] and Black-throated Diver [Gavia arctica] collected in South and Central Sweden, 1981-1997. In South Sweden (Sydsvenska Hoglandet), mean concentration in Red-throated Diver eggs was remarkably high (6.84 ppm dry weight, 5 pairs), or more than …

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Permanent link to this article: http://www.planetofbirds.com/red-throated-loon-article-3

Dec 26 2011

An evaluation of of common loon (Gavia immer) demography, migration patternsand genetic structure using nuclear microsatellite and mitochondrial DNA evidence.

Loon (Gavia immer) Science Article 2 abstract The proposed project uses genetic markers from nuclear and mitochondrial genomes to assess genetic structure, migration patterns and population dynamics in common loons (Gaviaimmer). Observations of loons on breeding grounds indicate that 1) mated pairs are highly philopatric, 2) effects of environmental contamination and habitat degradation can impair …

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Permanent link to this article: http://www.planetofbirds.com/loon-article-2

Dec 26 2011

Winter behavior of the common loon

Loon (Gavia immer) Science Article 4 abstract A 2-yr study was conducted on the winter behavior of the Common Loon (Gavia immer) at Weekapaug, Rhode Island. Behavior of loons was assessed by recording the type of activity every 60 s for a 5-min period. Activity budgets showed an increase in the amount of time spent …

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Permanent link to this article: http://www.planetofbirds.com/loon-article-4

Dec 26 2011

Winter behavior of the common loon

Loon (Gavia immer) Science Article 4 abstract A 2-yr study was conducted on the winter behavior of the Common Loon (Gavia immer) at Weekapaug, Rhode Island. Behavior of loons was assessed by recording the type of activity every 60 s for a 5-min period. Activity budgets showed an increase in the amount of time spent …

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Permanent link to this article: http://www.planetofbirds.com/loon-article-4-2

Dec 26 2011

Digestive Efficiency and Energy Requirements of Captive-reared Common Loons (Gavia immer)

Loon (Gavia immer) Science Article 3 abstract Many wild Common Loons have been exposed to mercury contamination; thisstudy will help increase understanding of how it affects their lives by providinginformation about digestive efficiency. The assimilated mass coefficient (AMC) foreight captive-reared Common Loons (Gavia immer) was determined by this studyto be 80% of dry fish. Rainbow …

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Permanent link to this article: http://www.planetofbirds.com/loon-article-3

Dec 26 2011

Digestive Efficiency and Energy Requirements of Captive-reared Common Loons (Gavia immer)

Loon (Gavia immer) Science Article 3 abstract Many wild Common Loons have been exposed to mercury contamination; thisstudy will help increase understanding of how it affects their lives by providinginformation about digestive efficiency. The assimilated mass coefficient (AMC) foreight captive-reared Common Loons (Gavia immer) was determined by this studyto be 80% of dry fish. Rainbow …

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Permanent link to this article: http://www.planetofbirds.com/loon-article-3-2

Dec 26 2011

Territorial takeover in Common Loons (Gavia immer)

Loon (Gavia immer) Science Article 1 abstract Breeding Common Loons (Guvia immer) are well known for vigorously defending their territory from conspecifics. Territory holders are not previously known to be supplanted by loons during the breeding season. I observed a pair of adult Common Loons displace a resident pair from their territory shortly after a …

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Permanent link to this article: http://www.planetofbirds.com/loon-article-1

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