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Blue jay: Difference between revisions
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[http://animaldiversity.ummz.umich.edu/site/accounts/information/Cyanocitta_cristata.html]They breed in gardens, farms, forests, or parks. [http://www.nrri.umn.edu/mnbirds/accounts/BLJAa2.htm] Their nests are built in trees or shrubs about 8-30 feet off the ground using twigs, bark, weeds, feathers, grass, roots, and whatever else they can find. [http://www.birdhouses101.com/blue-jay-Nesting.asp] The inside of the nest is lined with mud and feathers and is about 10cm across. The total diameter of the nest is about 18cm. [http://www.shawcreekbirdsupply.com/blue_jay_info.htm] They have also been known to have something white on the outside of the nest. It can be a candy wrapper, piece of bark, a paper towel they've found, or a white leaf. [http://www.birdhouses101.com/blue-jay-Nesting.asp] | [http://animaldiversity.ummz.umich.edu/site/accounts/information/Cyanocitta_cristata.html]They breed in gardens, farms, forests, or parks. [http://www.nrri.umn.edu/mnbirds/accounts/BLJAa2.htm] Their nests are built in trees or shrubs about 8-30 feet off the ground using twigs, bark, weeds, feathers, grass, roots, and whatever else they can find. [http://www.birdhouses101.com/blue-jay-Nesting.asp] The inside of the nest is lined with mud and feathers and is about 10cm across. The total diameter of the nest is about 18cm. [http://www.shawcreekbirdsupply.com/blue_jay_info.htm] They have also been known to have something white on the outside of the nest. It can be a candy wrapper, piece of bark, a paper towel they've found, or a white leaf. [http://www.birdhouses101.com/blue-jay-Nesting.asp] | ||
They are [[oviparous]], meaning they lay eggs that hatch outside the body. [http://www.thefreedictionary.com/oviparous] They lay about 3-7 blue-green eggs at a time, which is called a clutch of eggs. [http://www.enchantedlearning.com/subjects/birds/printouts/Bluejayprintout.shtml] They eggs can be a variety of glossy colors | They are [[oviparous]], meaning they lay eggs that hatch outside the body. [http://www.thefreedictionary.com/oviparous] They lay about 3-7 blue-green eggs at a time, which is called a clutch of eggs. [http://www.enchantedlearning.com/subjects/birds/printouts/Bluejayprintout.shtml] They eggs can be a variety of glossy colors such as pink, blue, green, or olive with brown or purple speckles. [http://www.all-birds.com/Blue-Jay.htm] | ||
After the eggs are laid, they are incubated mainly by the mother for 18 days. The mothers shed the feathers off a part of their stomach called the incubation patch. The area is filled with small blood vessels and provides heat for the eggs or young fledges. [http://www.birdhouses101.com/blue-jay-facts.asp] | After the eggs are laid, they are incubated, mainly by the mother, for 18 days. The mothers shed the feathers off a part of their stomach called the incubation patch. The area is filled with small blood vessels and provides heat for the eggs or young fledges. [http://www.birdhouses101.com/blue-jay-facts.asp] | ||
After the eggs hatch, the young are helpless, vulnerable, and without feathers. After about 17 days they have all their feathers and at 21 days of age they are able to leave the nest. The baby birds are closely watched and fed by their parents until they leave their nest at about 2 | After the eggs hatch, the young are helpless, vulnerable, and without feathers. After about 17 days they have all their feathers and at 21 days of age they are able to leave the nest. The baby birds are closely watched and fed by their parents until they leave their nest at about 2 to 4 months old. However, the fledglings can feed themselves at about 3 weeks old but still follow their parents around. [http://www.shawcreekbirdsupply.com/blue_jay_info.htm] | ||
[http://animaldiversity.ummz.umich.edu/site/accounts/information/Cyanocitta_cristata.html] The young birds look identical to the adults except that they are lighter in color: their blue feathers are more gray and their black feathers are more brown. [http://www.all-birds.com/Blue-Jay.htm] They can start mating withing the first year of their birth. The average lifespan for living in the wild is about 17 years. [http://animaldiversity.ummz.umich.edu/site/accounts/information/Cyanocitta_cristata.html] | [http://animaldiversity.ummz.umich.edu/site/accounts/information/Cyanocitta_cristata.html] The young birds look identical to the adults except that they are lighter in color: their blue feathers are more gray and their black feathers are more brown. [http://www.all-birds.com/Blue-Jay.htm] They can start mating withing the first year of their birth. The average lifespan for living in the wild is about 17 years. [http://animaldiversity.ummz.umich.edu/site/accounts/information/Cyanocitta_cristata.html] | ||
