Something's up.😞 The blue tits have failed for the third year in a row. Ten eggs were laid in our cam nest box and 8 hatched just before May Bank Holiday. The cold and wet bank holiday caused 4 to perish overnight, or at least I assumed at the time that was the reason. The male was either predated or went AWOL leaving the female to feed the young. This wouldn't normally be an issue but hard as she was working she rarely seemed to return with fat juicy caterpillars. tried getting her to get mini mealworms from various feeders but generally she either ignored them or Sparrows or Robins got them all first. A further one succumbed and their growth and development seemed slow as it was now ten days since they hatched. Yesterday morning I awoke to find the last three were dead and just a Bluebottle left in the box. 😪
I'm sure this is due to malnutrition. The box was successful to a greater or lesser extent with at least some fledging for many years previous to the last three. If anything this year, except for the Bank Holiday Monday the weather has been pretty good, with just a bit of light rain, mainly at night and mild night temperatures. Anyway they will have coped with this for thousands of years. The gardens are more mature than they were 15 years ago and next door's, being empty for 4 years has completely rewilded. My only conclusion is that there are less moth caterpillars about or we have reached a tipping point with the climate where they are now so out of synch that there is not enough food.
Any thoughts and how are yours doing?