In the UK there were an estimated 3,000 breeding pairs of Collared Doves in 1964. How many breeding pairs were recorded in 2008?
In the USA less than fifty escaped from captivity in the Bahamas in 1974. They can now be found in virtually every U.S. State as well as Mexico. Such is the phenomenal spread and increase in the population of the Collared Dove that the answer is c) 300,000 breeding pairs were recorded in the UK in 2008, a one hundred fold increase.
Taken from this week’s Crete Nature Blog: In The Quietest Moments