Birds have a long working day...up at 'sparrows' / picaninny daylight. 5 to 9 and lots of overtime.
In a parked up 182 a pair of Indian Mynahs only took a day and a half to put in a nest and a clutch of eggs way back under the top cowl.
With only a rudimentary DI it would have been a quick circuit and hard boiled eggs !!.