24 Mar 2026 London Observer description: DARK GREY HEAD, BLACK EYES, WHISKERS, LONGISH SNOUT FULL HEAD OUT OF THE WATER BEFORE DROPPING BACK UNDER.
Source: ZSL Thames Marine Mammal Survey, report 5624 — https://sites.zsl.org/inthethames/main/
24 Mar 2026 · London
23 Mar 2026 London Observer description: The baby seal was on the edge of the dock, it was there before I arrived and stayed there after Id left .
Source: ZSL Thames Marine Mammal Survey, report 5622 — https://sites.zsl.org/inthethames/main/
23 Mar 2026 · London
23 Mar 2026 London Observer description: Slightly ruddy colour and had some spots on its belly. At one point she rolled over onto her back.
Source: ZSL Thames Marine Mammal Survey, report 5623 — https://sites.zsl.org/inthethames/main/
23 Mar 2026 · London
22 Mar 2026 London Observer description: It looks healthy, but a lot of rubbish and people around also the boats
Source: ZSL Thames Marine Mammal Survey, report 5618 — https://sites.zsl.org/inthethames/main/
22 Mar 2026 · London
22 Mar 2026 London Observer description: It had a sand coloured coat and a reddish back
Source: ZSL Thames Marine Mammal Survey, report 5620 — https://sites.zsl.org/inthethames/main/
22 Mar 2026 · London
22 Mar 2026 London Observer description: Mottled grey lounging on slipway
Source: ZSL Thames Marine Mammal Survey, report 5621 — https://sites.zsl.org/inthethames/main/
22 Mar 2026 · London
22 Mar 2026 London Observer description: Its back was a rusty brownish colour, the rest of the seal was grey. Observer notes: The animal must have been there for a longer time when we got there, we didnt stay long. It was enjoying the sun.
Source: ZSL Thames Marine Mammal Survey, report 5619 — https://sites.zsl.org/inthethames/main/
22 Mar 2026 · London
21 Mar 2026 London Observer description: Head just out of the water Observer notes: None
Source: ZSL Thames Marine Mammal Survey, report 5617 — https://sites.zsl.org/inthethames/main/
21 Mar 2026 · London
20 Mar 2026 London Observer description: No distinguishing features by short snout hence the semi-confident assertion it was a grey seal
Source: ZSL Thames Marine Mammal Survey, report 5615 — https://sites.zsl.org/inthethames/main/
20 Mar 2026 · London
20 March 2026 Dorset, England One seal was recorded below the Lighthouse.
Source: Durlston Country Park, Latest Sightings (2026 table) — https://www.durlston.co.uk/latest-sightings
20 March 2026 · Dorset, England
19 Mar 2026 London Observer description: Orange, name marmalade
Source: ZSL Thames Marine Mammal Survey, report 5616 — https://sites.zsl.org/inthethames/main/
19 Mar 2026 · London
16 Mar 2026 London Observer description: Head surfacing and bobbing
Source: ZSL Thames Marine Mammal Survey, report 5613 — https://sites.zsl.org/inthethames/main/
16 Mar 2026 · London