Support the extension
Herman van der Meer ( www.xeno-canto.org )
The House Sparrow is one of the species most widely spread on earth. Virtually on all continents it is present in large numbers. Due to insulation of buildings, the House Sparrow now has more problems making its nest.
http://en.wikipedia.org/wiki/Passer_domesticus
http://eol.org/pages/922241/maps