Elizabeth knew, this one was too good to be true. Such delicious crumbs right in the middle of St Luke's Mews?, right next to that good old postal pillar? no other birds? Nope, this was clearly a trap and a pretty obvious one as well... cats?
She could now simply wait here for the postman to pick up the mail at 6:30, right when good old Ms. Smith tends to walk by here with her little pug, the dog would start his extensive barking concerto, this was most likely to confuse the stupid cats and allow Elizabeth to go for the crumbs. The only question now was if it was worth investing the time now to wait for the crumbs here, (47 minutes), or if she should just fly over to Upper Gilmore's place, where there was always cake on Thursdays, yet one barely was able to see their own beak, because of the location being such a stupid pigeon hot spot. Yet she could quite possibly fly into Charlie and Billie and maybe even Phil, and they always had such a jolly good time, exchanging little ideas about most recent trends in nest architecture...
Clearly, the crumbs were not worth it... unless...