sparrowhawk1966's picture

Blue tit

Observed: 7th September 2013 By: sparrowhawk1966sparrowhawk1966’s reputation in Birdssparrowhawk1966’s reputation in Birdssparrowhawk1966’s reputation in Birds
Blue tit
Blue tit nest
Description:

Cleaned out my nestbox today and I found this chick that did not make it. I heard the chicks when the adults arrived with food but I never saw any fledge.

Identifications
Species interactions

No interactions present.

Species with which Blue Tit (Cyanistes caeruleus) interacts

Comments

Ray Turner's picture

Fecundity

It’s almost certain the others did indeed fledge. The average brood size is 8-10 and it is quite common for one or two chicks not to make it or eggs not to hatch.

Ray

Ray

sparrowhawk1966's picture

Blue tit

Thanks for that info Ray. How old would you say the chick was? My thoughts would be around a week old!

T .S. King

Ray Turner's picture

Around That

I think so, maybe slightly older perhaps 10 days. It looks like the eyes were not open yet during life which happens around 11 days old.

Have a look at this nice little site and judge for yourself, particularly have a look at the flight feathers which are ‘in pin’:
www.richandrewsphotography.co.uk/bluetits.html
I’m sure one of the ringers will come along and tell us almost to the hour, they develop so quickly at this stage.

Ray

Ray