Frosty, hazy sunshine – a blurry treecreeper, hawthorn buds about to flower etc. Re: dungflies…. according to my well-thumbed Krebs and Davies: “The optimal copulation time(that which maximises the proportion of eggs fertilized per minute), given the shape of the fertilization curve and the fact that it takes 156 min to search for and guard a female, is 41 min.” It’s all to do with marginal value theorem. Whenever I see dungflies I’m 21 again.
