Readers wild for birds and mushrooms

A READER writes to say that in Dublin a couple of climatically-disorientated street pigeons, uka (unkindly-known-as) rats-with-wings, recently decided to roost, nest and defecate on staff and visitors above the entrance of her office building.

“The activity increased in the last week and then, whoosh, came the north winds and this morning, the nest and smashed eggs were found on the ground. Meanwhile, I notice that, since their moult, mallards are engaged in courtship and mating rituals.”

I wonder if other readers have observed instances of out-of-sync nesting in other species.