Potential marital disharmony here. Survey no. 1 should be late spring or early summer - we did ours on 21 May.
Survey no. 2 should be late summer. IMO that's September but my dear husband reckons we should go in July. To my mind that's mid summer and much too early! Opinions please! His reasoning is that by September most flowering is over and will make ID difficult. Also, our meadow will have been mown by then.
When does everyone else go please?!