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United Kingdom · observation

River Thames near Mallard Place, Teddington

· London

A seal was seen in the Thames near Mallard Place; the local article identifies 21 March as the date of the accompanying sighting image.

Species
Not recorded / not sure
Number of seals
1
Attributed name
Unidentified
Source
Teddington Town, 26 March 2025 — https://teddingtontown.co.uk/2025/03/26/its-seal-spotting-season-in-teddington/

About this record

Supporting evidence
Teddington Town published on 26 March 2025 and captions Matt Allchurch's Thames seal image as taken “last Friday” (21 March). The article locates the first seal-of-the-year report near Mallard Place. Species and identity are not specified.
Identification confidence
Uncertain
Editorial status
Published by Seal Watch.

Source wording, attributed names and approximate date labels are preserved. A published report does not establish a verified animal identity.

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Other reports with the same broad area or attributed name.

Under Tower Bridge

Observer description: Flat muzzle, dark shiny head.

Source: ZSL Thames Marine Mammal Survey, report 5828 — https://sites.zsl.org/inthethames/main/

HMS Belfast

Observer description: Observer submitted photographs; no written description of the animal was provided.

Source: ZSL Thames Marine Mammal Survey, report 5829 — https://sites.zsl.org/inthethames/main/

Thames dock boat

Observer description: Muzzle, rolled on its side

Source: ZSL Thames Marine Mammal Survey, report 5827 — https://sites.zsl.org/inthethames/main/

Creekmouth Open Space Barking, near the small Thames Barrier

Observer description: Long dog like snout. Dark brown colour. Head came above water before taking a deep breath and diving back down. Saw small amount of body whilst diving seemed quite large & in good condition

Source: ZSL Thames Marine Mammal Survey, report 5826 — https://sites.zsl.org/inthethames/main/