Report a Sighting

If you are concerned about a seal's welfare, or if you encounter a whale or dolphin, please report it immediately. to the BDMLR(British Divers Marine Life Rescue) emergency hotline at 01825765546 

Want to contribute to our Thames Seal Identification Log? We are excited to be using an AI identification system alongside our international scientific partners to determine whether we share seals with neighbouring countries and to help build our local seal identification catalogue. If you would like to report a past or live seal sighting please email us at mary@thamessealwatch.

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• Your name

• Phone number(ideal but optional)​

• Seal exact location using the app What Three Words, if possible

• Grey or Harbour, if known

• Pup or Adult, if known

• Any identifiable markings, scars, colouring

• Behaviour (swimming or on land, eating, sleeping..)

• Attach photos or videos

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You can also report this sighting to the ZSL(Zoological Society of London) Marine Mammal Sightings map here.