THE WILDLIFE OF THE RIVER BLYTH NAVIGATION 

Wildlife viewing varies along the route, shifting from more enclosed, freshwater-influenced upper sections to tidal marshes and estuary near the coast. The river acts as a wildlife corridor, supporting both common and notable species.  

Mammals: Otters and water voles (key species targeted by local restoration efforts).  Grey seals can be seen between Blythburg and the harbour.

⁠Birds: Kingfishers (often flashing along the water), marsh harriers quartering over marshes/reedbeds, various reedbed warblers (e.g., reed warbler), and other waterside birds like herons or ducks.

Other: Common insects and plants in meadows/scrub; 

The straightened channel and locks create varied micro-habitats, though water quality improvements are ongoing.This transitions into internationally important wetlands (part of the Suffolk Coast & Heaths AONB, with saltmarshes, mudflats, and saltings). Birdlife is particularly rich here, especially for waders and wildfowl during migration or winter. 

⁠Waders and wildfowl: Common shelduck, Eurasian oystercatcher, northern lapwing, dunlin, Eurasian curlew, whimbrel, bar-tailed godwit, avocet (notable spring gatherings), ringed plover, and others.

Raptors and specialists: Marsh harrier, bittern (in reedbeds), and occasional sightings of other birds of prey.  

Mammals: Otters