Hi All
In the last 25 years the House Sparrow has decreased 62% in the UK, In Canada they have decreased in the last 20 years, and in the Maritime Provinces in Canada declines have approached 90%
The House Sparrow in a tenacious beast. The Sumerians in 3000 BC labeled the House Sparrow as an enemy and a threat. In 1853 the House Sparrow was introduced into North America in Green-Wood Cemetery in Brooklyn NY and by the 1870s the species had established itself in every state east of the Mississippi River and in 1895 the first record for Colorado occurred in 1895 at Pueblo.
Good times don’t last forever and perhaps we are experiencing a temporary population re-adjustment?
Bob Righter
Denver CO