|Diversity of bluebirds.|
The bluebirds are a group of medium-sized, mostly insectivorous or omnivorous birds in the genus Sialia of the thrush family (Turdidae). Bluebirds are one of the few thrush genera in the Americas. They have blue, or blue and red, plumage. Female birds are less brightly colored than males, although color patterns are similar and there is no noticeable difference in size between sexes.
|Click for etymology|
Gr. σιαλις sialis, σιαλιδος sialidos unidentified bird, so-called from its cry, mentioned by Athenaeus and Hesychius; ex “Blew Bird” of Catesby 1731 (Sialia).
- Eastern Bluebird, Sialia sialis
- Western Bluebird, Sialia mexicana
- Mountain Bluebird, Sialia currucoides
Bluebirds are territorial, prefer open grassland with scattered trees.(similar to many species of woodpecker). Bluebirds can typically produce between two and four broods during the spring and summer (March through August in the Northeastern United States). Males identify potential nest sites and try to attract prospective female mates to those nesting sites with special behaviors that include singing and flapping wings, and then placing some material in a nesting box or cavity. If the female accepts the male and the nesting site, she alone builds the nest and incubates the eggs.
Predators of young bluebirds in the nests can include snakes, cats and raccoons. Non-native and native bird species competing with bluebirds for nesting locations include the Common Starling, American Crow, and House Sparrow, which take over the nesting sites of bluebirds, killing young and smashing eggs and probably killing adult bluebirds.
By the 1970s, bluebird numbers had declined by estimates ranging to 70% due to unsuccessful competition with house sparrows and starlings, both introduced species, for nesting cavities, coupled with a decline in habitat. However, in late 2005 Cornell University's Laboratory of Ornithology reported bluebird sightings across the southern U.S. as part of its yearly Backyard Bird Count, a strong indication of the bluebird's return to the region. This upsurge can largely be attributed to a movement of volunteers establishing and maintaining bluebird trails.
In the garden
Bluebirds are attracted to platform bird feeders, filled with grubs of the darkling beetle, sold by many online bird product wholesalers as mealworms. Bluebirds will also eat raisins soaked in water. In addition, in winter bluebirds use backyard heated birdbaths.
Of all the birds a gardener could choose to attract, the bluebird is the quintessential helpful garden bird. Gardeners go to extreme lengths to attract and keep them in the garden for their beneficial properties. Bluebirds are voracious insect consumers, quickly ridding a garden of insect pests.
In traditional Iroquois cosmology, the call of the bluebird is believed to ward off the icy power of Sawiskera, also referred to as Flint, the spirit of the winter. Its call caused Sawiskera to flee in fear and the ice to recede.
As a symbol in songs
Maurice Maeterlinck introduced the concept of a "blue bird of happiness" in his play The Blue Bird (1908). The bird in that play is not actually a bluebird, but merely a bird that is blue (which is, in the play, a symbolically significant color); subsequent use of the phrase, however, tended to blur this distinction. As a result, bluebirds became a widely recognized symbol of happiness and cheer, and have been used as such by numerous songwriters. Examples are Jan Peerce's signature song, "Bluebird of Happiness", Judy Garland's "Hello, Bluebird", "Over the Rainbow" ("Somewhere over the Rainbow/Bluebirds fly"), "I'm Always Chasing Rainbows" ("I'm Always Chasing Rainbows/Waiting to find a little bluebird in vain"), "Zip-A-Dee-Doo-Dah" ("Mr. Bluebird's on my shoulder"), David Bowie's "Lazarus" ("I'll be free / just like that Bluebird"), Vera Lynn's "The White Cliffs of Dover" ("There'll be bluebirds over/The White Cliffs of Dover"; a particularly remarkable instance, as there are no bluebirds in Europe), Mark Knopfler's "Bluebird", and Paul McCartney and Wings' "Bluebird".
- ^ Jobling, J. (2015). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.), eds. "sialis". Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. Retrieved 4-28-15. Check date values in:
- ^ John H. Boyd III (December 14, 2011). "MUSCICAPOIDEA II: Cinclidae, Turdidae, and Muscicapidae". TiF Checklist. Retrieved 5-04-2020. Check date values in:
- ^ "House Sparrows Kill Eastern Bluebirds" by Patricia Adair Gowaty in Journal of Field Ornithology, Volume 55, Number 3, Summer, 1984, pp. 378-380.
- ^ ""The Self-Sufficient Gardener Episode 109 Bluebirds"". Theselfsufficientgardener.com. 2011-07-20. Retrieved 2012-06-16.
- ^ Canadian Climate of Mind: Passages from Fur to Energy and Beyond By Timothy B. Leduc p.192-195
- ^ The Best of The Moody Blues; information accompanying the CD.
|Wikimedia Commons has media related to: http://commons.wikimedia.org/wiki/Sialia|
- Eastern Bluebird Cornell descriptions, including range, calls and physical description
- Videos from inside a bluebird nest Video clips showing development from eggs to fledglings (Faunascope)
- Thrush videos on the Internet Bird Collection
- Bluebird Information and Awareness Dedicated to educating the public about the needs of the bluebird and providing the information needed to help them.
- North American Bluebird Society Dedicated to promoting the preservation of bluebirds.
- Sialis Information on bluebirds and their conservation and restoration.
|This article is part of Project Bird Genera, a All Birds project that aims to write comprehensive articles on each genus, including made-up genera.|
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