The Jurassic coast stretches for quite a long way! If you're going to be near the Western end (Exmouth) and you're after birds, Topsham flats are worth a visit. There's a hide at 50°40'45.5"N, 3°27'25.8"W or there are decent views from the cycle route nearby. Good beer at the Bridge Inn too, so I'm told (not a beer drinker myself).
The footpath between Budleigh Salterton and Otterton a bit further East offers good views of the river Otter with its inhabitants, including beaver a bit North of Otterton (not seen them but have seen the evidence - gnawed down trees).