Blue Tit and nest box question

I have a bird box with a camera in my garden and for the last few weeks (this April) a blue tit has been working hard visiting regularity and building what now looks to be a finished nest. The female has also spent the night in the box on a few occasions. However the last few days she has turned up less frequently and now to no sightings at all. I have a bird feeder in the garden close to the box and I believe I sometimes see the male and female briefly but they soon fly off elsewhere.
My question is do blue tits sometimes take a break from the nest box and later return to lay the eggs? Unfortunately quite a few magpies visit the garden and think they may have put the blue tits off visiting the box on a few occasions. Maybe this could have happened? I have definitely seen the female bird hide in the box until the magpies have gone. Also I'm aware there is always the threat of neighbourhood cats predating birds.
Any help or advice or to learn of other peoples experience would be most welcome.
Thanks Nick

  • Hi Nick , I am no expert am afraid but I do know that having a feeder close to the nestbox ain't a good idea as this makes it a busy area and a threat to the nesting birds.

    Hopefully the link below will be more helpful than me and give you an insight to bluetits nesting behaviour

    www.bto.org/.../blue-tit-diary

    (Pardon the Scottish Accent)

  • Thanks for the reply.

    I probably should have said in my earlier post that my bird box isn't that close to the feeder but approximately 25-30 feet and situated on a tree behind a high hedge. Obviously with birds flying around the feeder the box can be seen by other birds when visiting the garden but the tree does give the box good cover when it develops its foliage in early summer.

    A couple of years ago I had a successful blue tit nest in the box so wondered why after all the hard work the bird has put in making the nest; why it should suddenly be abandoned? Perhaps they may return but it seems doubtful somehow?

    I just thought that after noticing on camera the blue tit hiding motionless in the box until the magpies left may have given a clue in my case?

    Interested to hear more thoughts on this.