| In reply to your question re the lack of parental activity - personally I wouldn't interfere with the box (I don't know if you could rear them further by hand, and I doubt the parents would return if you intrude anyway). I doubt very much if an open window was to blame for this change in behaviour (it's usually the removal of flight path objects which 'throws' them). If the chicks have been hatched for maybe 3 weeks, they must be very close to maturity - could the parents be in a nearby tree encouraging them to fly the nest? It is so distressing when a nest is abandoned but not unusual. As you'll see from my edited post, ours were not abandoned, which makes it all the more puzzling - perhaps it was contaminated food, or too many mouths to feed initially, making it harder for the clutch to thrive.
But, Good Luck with your nest! |