Daily Archives: August 28, 2009

ONE POSSIBLE REASON WHY SWALLOW NUMBERS MAY BE IN DECLINE

Migration is a hazardous time and many birds die from starvation, in storms and from exhaustion.

European swallows spend the winter in three different areas  –

  • Africa – south of the Sahara
  • Arabia
  • Indian sub-continent

Swallows take different migration routes depending on which area they are flying to and from.  This may explain why some areas of Britain have seen a drastic decline in swallow numbers and in other areas swallow numbers have remained static.  Could it be because some  migration routes have been safer/ easier  than others

When flying over areas such as the Sahara Desert they could easily starve during the flight.

Swallows –

  • Put on little weight before they start to migrate
  • Cover 200 miles a day
  • Fly mainly during the day.
  • They fly at speeds of 17-22 miler per hous.
  • Their highest flight speed is 35 miles per hour.

 I have found this British Trust for Ornithology website page.  The page  was last updated on 28th November 2008.  It may be worthwhile if every person logs all their swallow  details

http://www.bto.org/appeals/swallow.htm

Here’s hoping they have a good flight back from whence they came.

-0-0-0-0-0-0

Swallow at rest in England

Swallow at rest in England