More on the status of the Bank Swallow, which is declining across a very large geographic area: see the links below for additional detailed information, but first these more general references about the "aerial insectivores":
http://www.bsc-eoc.org/download/BWCwi08.pdf
http://www.ace-eco.org/vol5/iss2/art1/
http://www.nhaudubon.org/wp-content/uploads/2010/11/Afield-spring-2012-web.pdf
and refer back to my last post to see atlas maps compared between Atlas 1 and Atlas 2:
http://futureofbirds.blogspot.com/2016/08/bank-swallow-how-thhings-have-changed.html
Bank Swallow is strongly declining in many Canadian provinces:
http://www.registrelep-sararegistry.gc.ca/species/speciesDetails_e.cfm?sid=1233
http://www.manitobacooperator.ca/country-crossroads/species-at-risk/
http://www.birdatlas.mb.ca/speciesatrisk/Species/BankSwallow/species.htm
https://www.ontario.ca/page/bank-swallow
In New Hampshire:
http://nhbirdrecords.org/all-articles/NH_Swallow_Fact_Sheet_21-Jun-10.pdf
In California:
http://www.bankswallows.org/
By Wm. Mueller - - Ornithology, ecology, environmentalism, and our life in the natural world
Saturday, August 27, 2016
Wednesday, August 24, 2016
Bank Swallow - how things have changed
Over the past 3 decades, Bank Swallow populations have declined in many areas, and some geographic areas have indeed seen dramatic declines. In several provinces in Canada, the species has declined by 90%, but declines are underway in the United States also. Here in WI, the contrast in the map from Atlas 1, to the current map (with only 2 years of atlas observations) clearly shows some change is occurring statewide:
Learn more about this species, at these links:
https://www.ontario.ca/page/recovery-strategy-bank-swallow
http://www.pointblue.org/our-science-and-services/conservation-science/threatened-species/bank-swallow/
Learn more about this species, at these links:
https://www.ontario.ca/page/recovery-strategy-bank-swallow
http://www.pointblue.org/our-science-and-services/conservation-science/threatened-species/bank-swallow/
Monday, August 15, 2016
Aerial Insectivores in the Midwest
We have a re-named Facebook Group (now a Discussion Group) devoted to Aerial Insectivores, at https://www.facebook.com/groups/1581381955435390/
Go to this Facebook group to learn more about the status of swifts and swallows, and other avian aerial insectivores - or join the group!
Go to this Facebook group to learn more about the status of swifts and swallows, and other avian aerial insectivores - or join the group!
Ph by Francesco Veronesi, Wikim. Commons |
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