TQ3681 : Monopods on the canal

taken 8 years ago, near to Stepney, Tower Hamlets, Great Britain

Monopods on the canal
Monopods on the canal
A common sight but why DO water birds stand on one leg? It can't be restful! The answer is heat conservation: such birds possess an adaptation called a "rete mirabilis" a complex web of arteries and veins which in their case acts as a heat exchange mechanism: the arteries that transport warm blood into the legs lie in contact with the veins that return colder blood to the birdís heart. The arteries warm the veins. By standing on one leg, a bird reduces by half the amount of heat lost through unfeathered limbs and webbed feet.
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TQ3681, 401 images   (more nearby )
Photographer
  (find more nearby)
Date Taken
Sunday, 4 October, 2009   (more nearby)
Submitted
Wednesday, 7 October, 2009
Category
Birds > Birds   (more nearby)
Subject Location
OSGB36: geotagged! TQ 363 818 [100m precision]
WGS84: 51:31.1258N 0:2.1819W
Camera Location
OSGB36: geotagged! TQ 363 818
View Direction
WEST (about 270 degrees)
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