The eastern spadefoot toad (Scaphiopus holbrookii) is an odd descendant of desert-dwellers marooned in wet and cold New England. Our spadefoot toads reach the northern limits of their range in Massachusetts and New York states. None have been documented in New Hampshire. Eastern spadefoot toads are the rarest frog species in Massachusetts and, with the exception of Vermont’s boreal chorus frog, the rarest frog in New England overall. They're rare in all the northeastern states in which they occur. In Massachusetts, spadefoot toads, a threatened species, are primarily found on the outer parts of Cape Cod, with other significant but local populations in southeastern Massachusetts, Nantucket, Martha’s Vineyard, and Plum Island. A few small populations persist in the Connecticut River Valley and one tiny known population remains in Middlesex County.
Eastern spadefoot toads spend the bulk of their lives underground in dry, sandy soils. They breed sporadically and unpredictably, usually in the spring months but occasionally throughout the summer and always in response to heavy rains. Males call from suitable vernal pool habitat with a whining “bleat” during the short, unpredictable breeding season. Females lay gelatinous egg masses, which hatch in several days into tadpoles that develop a characteristic pattern of gold flecking. Since eastern spadefoot toads typically select relatively small, shallow, and very ephemeral vernal pools as their breeding sites, many large groups of tadpoles perish if a dry spell causes their breeding pools to vanish before the tadpoles can metamorphose. As juveniles and adults, eastern spadefoot toads are nocturnal and come out of their burrows to feed on ants and other invertebrates during warm, often moist nights. They have large “cat-like” eyes and their hind feed each possess a small specially adapted “claw” or “spade,” which allows them to burrow into the sand in a surprisingly short time.
Eastern spadefoot toads are very hard to find, even with the benefit of modern equipment. We therefore know little about their past distribution in our area. However, museum specimens and descriptions demonstrate that they were once considerably more widespread in northeastern Massachusetts, including historical reports from Cambridge, Concord, and several towns in Essex County.
Eastern Spadefoot Toad Fact Sheet