Sialia sialis

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Bibliography

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	AVES	PASSERIFORMES	TURDIDAE

Scientific Name:

Sialia sialis

Species Authority:

(Linnaeus, 1758)

Common Name/s:

English

–

Eastern Bluebird

Assessment Information [top]

Red List Category & Criteria:

Least Concern ver 3.1

Year Published:

2012

Assessor/s:

BirdLife International

Reviewer/s:

Butchart, S. & Symes, A.

Contributor/s:

Justification:
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be increasing, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is extremely large, and hence does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.

History:

2009	–	Least Concern
2008	–	Least Concern
2004	–	Least Concern

Geographic Range [top]

Countries:	Native: Belize; Bermuda; Canada; El Salvador; Guatemala; Honduras; Mexico; Nicaragua; United States Vagrant: Cuba; Saint Pierre and Miquelon; Virgin Islands, U.S.
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population Trend:	Increasing

Population Trend:

Increasing

Habitat and Ecology [top]

Systems:	Terrestrial; Freshwater

Systems:

Terrestrial; Freshwater

Bibliography [top]

	Butler, C. J. 2003. The disproportionate effect of global warming on the arrival dates of short-distance migratory birds in North America. Ibis 145: 484-495. IUCN. 2012. IUCN Red List of Threatened Species (ver. 2012.1). Available at: http://www.iucnredlist.org. (Accessed: 19 June 2012). Rich, T.D.; Beardmore, C.J.; Berlanga, H.; Blancher, P.J.; Bradstreet, M.S.W.; Butcher, G.S.; Demarest, D.W.; Dunn, E.H.; Hunter, W.C.; Inigo-Elias, E.E.; Martell, A.M.; Panjabi, A.O.; Pashley, D.N.; Rosenberg, K.V.; Rustay, C.M.; Wendt, J.S.; Will, T.C. 2004. Partners in flight: North American landbird conservation plan. Cornell Lab of Ornithology, Ithaca, NY. Torti, V. M.; Dunn, P. O. 2005. Variable effects of climate change on six species of North American birds. Oecologia 145: 486-495.

Butler, C. J. 2003. The disproportionate effect of global warming on the arrival dates of short-distance migratory birds in North America. Ibis 145: 484-495.

IUCN. 2012. IUCN Red List of Threatened Species (ver. 2012.1). Available at: http://www.iucnredlist.org. (Accessed: 19 June 2012).

Rich, T.D.; Beardmore, C.J.; Berlanga, H.; Blancher, P.J.; Bradstreet, M.S.W.; Butcher, G.S.; Demarest, D.W.; Dunn, E.H.; Hunter, W.C.; Inigo-Elias, E.E.; Martell, A.M.; Panjabi, A.O.; Pashley, D.N.; Rosenberg, K.V.; Rustay, C.M.; Wendt, J.S.; Will, T.C. 2004. Partners in flight: North American landbird conservation plan. Cornell Lab of Ornithology, Ithaca, NY.

Torti, V. M.; Dunn, P. O. 2005. Variable effects of climate change on six species of North American birds. Oecologia 145: 486-495.

Citation:	BirdLife International 2012. Sialia sialis. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 25 May 2013.
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