The first was a Class D affiliated system that operated from 1946 until 1950, and the second was an independent minor league that played from 1995 until 1996.
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They began play in 1996 as an expansion team in the North Atlantic League.
The Hummingbirds were charter members of the North Atlantic League, a Class D circuit which was one of many minor leagues to pop up after the end of World War II.