After nearly two weeks of hearing the blue tit chicks
chirping whenever the parents brought food to them, yesterday is all went quiet
apart from one single chick, who seemed to be calling for its parents.
Suddenly there was no sign of the parents and my concern
grew this morning when silence greeted the mealworm breakfast I’ve been leaving
out for the local birds to help with parenting.
Robins, house sparrows, blue tits and great tits have been
making use of the mealworm donation.
Mid-morning I opened the nest box, confident the parents had
left the nest for good, and was saddened by what greeted me.
A couple of days ago I’d noticed a couple of flies entering
the nest and wondered if one of the chicks had died.
Unfortunately when I opened the nest box there was five
chicks that had died, a couple seemed close to fledging while others seemed to
have been slightly younger when they died.
As to the reasons for them dying it remains unsolved; I
suspect four reasons.
1 – One or both parents were predated, although I think this
unlikely as they were around yesterday and it’s rare to see a sparrowhawk in
the local vicinity.
2 – Disease took hold and the chicks sadly succumbed over
time.
3 – The parents didn’t bring in enough food, which again
seems unlikely given the mealworm supplements.
4 – The parents fledged a couple of chicks but the others were
too far behind and the parents left with the few older ones.
I guess it’ll remained unsolved, but it’s the first time a
nest has failed this much.
While carrying out the nest investigations I could hear a
couple of buzzards circling above, soaring on the thermals and not a crow or
rook harassing them.
The robin nest, in the previous wren nest box, appears to be
viable, although I remain sceptical there will be successful hatching of this
nest
Perhaps they’ll surprise me, although what is surprising is
the house sparrows who are paying close attention to the triple nest box, again
I don’t think they have nested there this year, but could be wrong.
Finally the swallows seem to be on eggs, while the blackbird
nest hasn’t had any sign of chicks being fed – maybe next week.
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