Wildlife Clinic

Species

Marsh rabbit

Sylvilagus palustris

A small, dark, short-eared rabbit of southern marshes that swims readily and often walks instead of hopping.

A marsh rabbit sitting in short green grass in warm light, its small rounded ears up.

Photo Tomfriedel (opens in a new tab) / Wikimedia Commons, CC BY 3.0 (opens in a new tab)

At a glance

Size
Body about 35 to 45 cm
Weight
About 1 to 1.6 kg
Habitat
Freshwater and brackish marshes, swamp edges, wet meadows and canal banks of the southern coastal plain
Diet
Grasses, sedges, rushes, marsh plants, and the bark and twigs of shrubs
Active
Mostly dusk, night and dawn
Shelter
Dense marsh vegetation; nests of grass and fur on raised ground
Lifespan
Usually a year or two in the wild
Rabies vector
No

Identification

Key marks
Dark reddish-brown to grey-brown fur; short, rounded ears; small feet; a small tail that is greyish-brown underneath rather than bright white
Movement
Often walks on all fours rather than hopping
Told apart from
Eastern cottontail, which is paler, longer-eared and has a bright white cotton tail
Told apart from
Swamp rabbit, which is larger and lives in bottomland forest
Where to look
Marsh edges, levees and grassy banks along coastal Georgia and the coastal plain at dusk

Behaviour

Marsh rabbits live in the wettest places a rabbit can: coastal and freshwater marshes, swamp edges and the grassy banks of canals. They swim well and readily, and will take to water to escape a predator, sometimes floating with only eyes and nose above the surface.

They are unusual among rabbits in often walking on all fours rather than hopping. They feed at dusk and through the night on grasses, marsh plants and shrubs.

Why they matter

Marsh rabbits are an important food for predators of southern wetlands — alligators, bobcats, owls, hawks and snakes among them — and their grazing helps shape marsh vegetation.

One population, the Lower Keys marsh rabbit of Florida, is endangered, a reminder of how much these animals depend on marshes that are easily drained or built on.

Reproduction and lifecycle

Breeding — much of the year in the Deep South
Gestation — about 30 to 37 days
Litter — usually two to four young, born furred in a nest of grass and fur
Leaving the nest — at about two to three weeks old
Independence — soon after leaving the nest
Lifespan — rarely more than a few years in the wild

Living around people

  • Mowing canal banks and marsh edges in spring and summer can destroy nests.
  • Dogs and cats kill many young rabbits near homes.
  • A nest of young rabbits is best left alone; the mother visits only briefly, usually at dusk and dawn.

Misconceptions

  • A nest of young rabbits with no mother in sight is abandoned. Rabbit mothers stay away from the nest to avoid leading predators to it, returning to feed the young once or twice a day.
  • Rabbits do not swim. Marsh rabbits swim readily.
  • Any wild rabbit is a cottontail. Coastal Georgia has marsh rabbits too, darker and shorter-eared.

Related species

Seasonal activity

When this species is breeding, and when there are nests on the ground. Mowing during the shaded months is how most nests are found.

Breeding and active nests by month for this species
JanFebMarAprMayJunJulAugSepOctNovDec
BreedingJan: noFeb: noMar: noApr: noMay: noJun: noJul: noAug: noSep: noOct: noNov: noDec: no
Active nestsJan: noFeb: noMar: noApr: noMay: noJun: noJul: noAug: noSep: noOct: noNov: noDec: no
NotesBreeding can occur year-round in the warm SouthBreedingYoung born in hidden nestsPeak breedingYoung leave the nest at about two to three weeks oldBreeding continuesYoung of the year disperse along marsh edgesBreeding continuesBreeding slows in some areasActive at dusk along levees and banksBreeding may continue in mild weatherActive; breeding in warm spells

Where it lives

Recorded in 6 states and provinces. Each one links to the other animals there, and to the rehabilitators licensed for them.

If you found one

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