But May is the time we wish to get all the Summer visitors bofore they disappear in the leaves. Later, we can try for nightjar. There can be quail near by. Could go for eagle. However, this can be one of the best months for evening otter watches.
Nightjar is good now.
July Still good for otter and nightjar. Bearded tits tend to be more visible from now until the Autumn. First return waders - tend to be the adults first. Still terns and auks. Can be a second chance for the summer visitors as the young start to move about.