They heard northern spring peepers vocalizing during spring nights. Today apartment buildings and shopping centres are in their place. The ponds are gone and so are the frogs. Amphibian populations tend to benefit during the early stages of development. The roadside and gravel pit ponds provide excellent breeding habitat.
Some species even overpopulate.
However, automobiles and children keep the populations in check most of the time. Once you get away from populated areas and into the wilder areas of Nova Scotia amphibian populations seem to be doing just fine. There are some who would disagree with me. In the 1950s if someone found a mink frog in Nova Scotia it was considered to be a major find. This species until recent years was though to be most uncommon in this province.