Sunday, February 13, 2011

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Savannah Sparrows

The Savannah Sparrow (Passerculus sandwichensis) is a species of sparrow belonging to the family Emberizidae. It is monotypic in its genus.

It measures about 14 cm and lives in North America.

This bird frequents open areas with dense vegetation but rather rasa, especially dry meadows, grasslands, alpine grasslands and tundra.


The male Savannah Sparrows females have identical plumage. The male is slightly larger than the female. There is considerable variability in the size of these birds and those from the island (including Magdalen Islands) are generally larger than those inhabiting the mainland. Of Furthermore, species in eastern and northern North America are larger than species from the mainland.

The Savannah Sparrow accumulate fat reserves during migration. Savannah Sparrow, particularly the female, is discrete in nature. It hides in dense vegetation and the ground moves as some small rodents.


During the breeding season, the Savannah Sparrow adult feeds mainly on insect larvae and adults, including Coleoptera, Hymenoptera, Diptera, Hemiptera, Homoptera, Lepidoptera (mainly larvae), Orthoptera and Odonata (mostly larvae). Small spiders, millipedes, crustaceans, snails and aquatic insect larvae are also part of their diet. During migration and wintering areas, seeds and some berries are the foods most commonly consumed. The Savannah Sparrow hunting insects walking on the floor, scanning the database of herbs and plants. Occasionally, it can scrape the humus with his legs to catch prey hidden. Generally, prey are eaten whole. The seeds are harvested when they fall mainly on the ground herbs.

Both parents report food to nestlings. Adults seem to fill their water requirements with the ingestion of prey and drops of dew. Generally, Quebec, Savannah Sparrow arrives in male breeding site for 1 to 3 weeks before the female either late April or early May .
In Quebec, 9.8% of Savannah Sparrows produce a second brood.

The female lays an average of 4 eggs (2 to 6 eggs) she incubates for a period of 12 days.

To distinguish Sparrow other sparrows, notice a yellowish eyebrow stripe and white in the middle of the ice, his tail is short and notched and feet are pink.
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