Wilstone reservoir: Beautiful, sunny morning. Skylarks singing & displaying (field by the east corner). Goldeneye (3+, 1♂) in east quadrant; Pintail from the hide (at least 1 pair); Cormorants and Grey Herons gathering nesting material; Great Crested Grebes pairing up and displaying occasionally. Little Egrets (2) from car park steps, in field north of reservoir.
Common Toad (bufo bufo) in east corner, on the bank.
Compared to a Common Frog (Rana temporaria) I found at Bovingdon Brickworks last year