breakfast delays

So here's the thing. Here I am, waiting for my breakfast, getting all excited ( as you do). LB dutifully goes up to the garage to get my breakfast and my hay - but both on the way and the way back she pauses at the top of the steps. Apparently there is a lady blackbird sitting on her nest in the middle of the cotoneaster (LB added that bit, I wouldn't have a clue). There's a good view of her, apparently, from the top step.

What I want to know is - why can't she stop and look after she's served me breakfast?