American bullfrog Lithobates catesbeianus
Photo credit: GBNNSS
Appearance: Twice the length of the native common frog (up to 25 cm).
- Call: Loud deep calls similar to a bellow.
- Biology: Spawn can consist of up to 20,000 eggs, tadpoles can grow to 15 cm.
- Diet: Outcompetes and eats native amphibians.
- Impact: Carries diseases harmful to other amphibians, causing decline and extinction of some species.
- Pathway: May have escaped or been deliberately released into the wild.
- Legal status: Species of special concern listed under the retained EU Regulation 1143/2014 and the Invasive Alien Species (Enforcement & Permitting) Order 2019.
- Unless you have a licence or permit or an exemption applies you must not:
- keep them in your house, garden or business
- sell them to other people
- exchange them for goods
- release them into the environment
- let them breed or escape
- import them into the UK
- transport them within the UK
- export them to other countries
- What to do if you see American bullfrog for sale or other offences being committed: Make a report by following the guidance here.
- What to do if you see this animal in the wild
- This is an alert species, record it with a photograph (where possible).