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Blue jay: Difference between revisions
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Their scientific name, "cyanocitta cristata" means blue, chattering bird. Their calls sound like a "jay jay" or "queeble." They are also good at mimicing other bird's calls. [http://animals.nationalgeographic.com/animals/birds/blue-jay.html] | Their scientific name, "cyanocitta cristata" means blue, chattering bird. Their calls sound like a "jay jay" or "queeble." They are also good at mimicing other bird's calls. [http://animals.nationalgeographic.com/animals/birds/blue-jay.html] | ||
Throughout their whole lifetime, they have only one mate. But be careful not to get too close to their nest or they might attack. [http://animaldiversity.ummz.umich.edu/site/accounts/information/Cyanocitta_cristata.html] | Throughout their whole lifetime, they have only one mate. [http://animaldiversity.ummz.umich.edu/site/accounts/information/Cyanocitta_cristata.html] But be careful not to get too close to their nest or they might attack. [http://animaldiversity.ummz.umich.edu/site/accounts/information/Cyanocitta_cristata.html] | ||
They travel in flocks, but only a few migrate. The reason for this is not yet found, considering there is no specific pattern. [http://animals.nationalgeographic.com/animals/birds/blue-jay.html] The majority lives in Southern Canada all the way down to Texas. [http://www.shawcreekbirdsupply.com/blue_jay_info.htm] | They travel in flocks, but only a few migrate. The reason for this is not yet found, considering there is no specific pattern. [http://animals.nationalgeographic.com/animals/birds/blue-jay.html] The majority lives in Southern Canada all the way down to Texas. [http://www.shawcreekbirdsupply.com/blue_jay_info.htm] | ||
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== Reproduction == | == Reproduction == | ||
Mating usually starts in May and ends in late summer or early fall. A group of males will follow a female, bobbing their heads up and down, trying to show off. The female then chooses one of them to be her mate. [http://www.wild-bird-watching.com/Blue_Jay.html] Afterwards, the chosen male will provide for her by finding food for her and getting suitable twigs for their future nest. [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] | [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 lay about 3-7 blue-green eggs at a time. [http://www.enchantedlearning.com/subjects/birds/printouts/Bluejayprintout.shtml] They eggs can be a variety of glossy colors like pink, blue, green, or olive with brown or purple speckles. [http://www.all-birds.com/Blue-Jay.htm] | 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 like pink, blue, green, or olive with brown or purple speckles. [http://www.all-birds.com/Blue-Jay.htm] | ||
After the eggs are layed, they are incubated mainly by the mother for 18 days. The mothers shed the feathers off a part of their stomache 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 layed, they are incubated mainly by the mother for 18 days. The mothers shed the feathers off a part of their stomache 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] | ||
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* [http://www.all-birds.com/Blue-Jay.htm Blue Jay] All-Birds.com, 2003 | * [http://www.all-birds.com/Blue-Jay.htm Blue Jay] All-Birds.com, 2003 | ||
* [http://www.birds.cornell.edu/AllAboutBirds/BirdGuide/Blue_Jay_dtl.html Blue Jay] Cornell Lab of Ornithology,2003. | * [http://www.birds.cornell.edu/AllAboutBirds/BirdGuide/Blue_Jay_dtl.html Blue Jay] Cornell Lab of Ornithology,2003. | ||
* [http://www.aspensongwildbirdfood.com/wildbirds/speciesprofiles/detail.php?id=69 Blue Jay] Aspen Song™ Wild Bird Food, 2008. | * [http://www.aspensongwildbirdfood.com/wildbirds/speciesprofiles/detail.php?id=69 Blue Jay] Aspen Song™ Wild Bird Food, 2008. | ||
* [http://www.thefreedictionary.com/oviparous] Farlex Inc., 2008. | |||
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