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Thursday, 31 May 2012
Monday, 28 May 2012
Blue Tits last Day
The Blue Tits fledged today , the day after the Great Tits.
Blue Tits last day...
Sunday, 27 May 2012
Great Tits Fledge
Well, the Great Tits have all gone, the box is empty. They fledged early this morning. Below is a video of their last day
Saturday, 26 May 2012
Weather affecting Blue Tit brood size and timing in 2012
11 eggs - some hidden by feathers 2011  |
Weather affecting Blue Tit brood size and timing in 2012Bue Tit Cyanistes caeruleusAverage weight 11 grams Average Lifespan 3 years We have certainly noticed at birdboxesonline this year's weather has been a contributing factor to the timing of our Blue Tits nesting. We had eleven Blue Tits in one of our camera boxes last year and all fledged on 17th May 2011, this year they laid 9 eggs of which only six hatched and survived but they have still not fledged at the time of writing this. 26/5/12. On average it seems they are 2 weeks behind last year - certainly in Surrey and Sussex. |
9 eggs ( 3 hatched ) in this picture 2012  |
The birds time their nesting so there are plentiful
supplies of green caterpillars about. The yellowness of the males
chest bib is an indication of the amount of caterpillars he has eaten -
this is due to the carotene pigments in them - the females are more
attracted to yellower bib. The caterpillars can be found on many
Trees plants and bushes and it is a very common site to see a bird
hanging upside down from a twig to forage for them they need them to
be plentiful! Each chick can eat over 100 per day - no wonder the
female looks tatty and tired after they have fledged! The average clutch of Blue Tit eggs tend to be about 10
- 12 although I have heard from others as well as my own studies,
this year's eggs seem to be lower in numbers. The UK generally had
above average weather in March 2012 but went on to have the wettest
April in over a century.How this will effect the population generally is a bit more guess work - 70 - 80% of blue tits die each year, a huge mortality rate and most of that figure is made up of young birds - it's a brutal Darwinian process.. However Blue Tits can live a long time 15 - 20 years in extreme rare cases. So will the population dip slightly or will the amount of breeding pairs remain roughly constant? If they can survive through the first year they have a knack for survival and are more likely to survive to breed again? This paper has noted a higher chance of breeding females being predated and the males possible countering that with feeding rituals. I suspect that this year will make little difference on the population as a whole. However a few more terrible springs may be anotherstory. Rob www.birdboxesonline.co.uk |
Friday, 25 May 2012
2 gone this morning
Great Tits
2 fledged this morning an exciting time here at www.birdboxesonline.co.uk but also tinged with sadness in a way -I think fledging a little prematurely but they were the biggest, so now just leaving 4 in the nest
Thursday, 24 May 2012
Wednesday, 23 May 2012
Blue tit chicks
Blue Tit chicks
i shall call him squeaky and he will be my squeaky. little blue tit so cute at the end
Sunday, 20 May 2012
Great Tit Chicks
Great Tit chicks have been coming on leaps and bounds and the parents are being kept very busy!
Tuesday, 15 May 2012
Wednesday, 9 May 2012
Monday, 7 May 2012
Great Tit Hatching Day
Great Tit Hatching Day
The Great Tits finally started hatching. Although we had a rough idea when they would hatch it is a bit of a guess as to when she seriously starts to incubate the eggs. This video was shot today and stitched together to show the first to the seventh to hatch. The female can be seen eating the empty shells of the eggs to give her some of her strength back. The male was playing his part by bringing the family food.
In this box is a webcam which has provided great pictures and videos and is available on our website
Sunday, 6 May 2012
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