The short-beaked common dolphin is one of the most
abundant dolphins in the Western North Atlantic, with
estimated 67,191. The dolphin is usually
found in small social groups of between 10 and 20, but can
be found in larger aggregations of hundreds (or thousands).
Their distinctive side colors with V-shaped dark cape and
hourglass pattern with a yellow/tan anterior section, are
Adult D delphis are 7.5 - 8.5 feet in length and
may weigh up to 300 lbs. Calfs are about 32 in. at
birth. and feeds on mother's milk for 4 months. Common
dolphins reach sexual maturity at 3-5 years of age and may
live until 30 year old.
Common dolphins are nomadic and can be found
swimming and porpoising
throughout the world's oceans in sub-tropical to temperate
waters including New York.
Here's a video of common dolphins about 20 miles south of
Montauk Point on 7/31/2011.