Friday, September 16, 2011

more on weather and migration

Here in southeastern Wisconsin, dry conditions have certainly been the rule for many weeks. Since Jan. 1, the precip. total is 23.80 inches; the normal is 25.75 inches of precip. by this date; so we are 1.95 inches below normal.

However, do dry conditions affect migration?

See a good overview of fall weather and migration at:

http://ebird.org/content/ebird/news/fall-birding-basics

And a thought-provoking paper on changing bird migration dates can be found at:

http://www.int-res.com/articles/cr_oa/c035p037.pdf
 

(Image: Wikimedia Commons)

1 comment:

  1. A beautiful moment captured! ;-)
    Greetings from Russia!
    Best regards, Igor Torgachkin
    www.torgachkin.ru

    ReplyDelete