blue tit visit

[franky]

hi folks just wondering if anybody can tell me why our little blue tit comes right up to the house she lands on the handle of the patio doors jumps down to look through the glass does this a few times and squawks at the window flies off but its not long before she is back again repeating this its lovely to watch but was wondering why ?

[FUDGEY]

Seeing its reflection Id guess and thinks its an intruder.

[actionfinch]

I have a window feeder up , and its intresting watching the bluetits land , they seem to have a look in before jumping on the end to feed from it, but have not seen then have any confrontations with the window itself.