The extinction of passenger pigeon was due to

Options

A. increased number of predatory birds
B. over exploitation by humans
C. non-availability of the food
D. bird flu virus infection.

Answer

B

Explanation

Passenger pigeons (Ectopistes migratorious) were once one of the most abudant birds on our planet, living in United States. Buthunting on a very massive scale as well as deforestation, lead to their extinction. Many crue ways were used for their hunting. The last individual of this species died in 1914 in Cincinnati Zoo.