'Bird-to-buy'

I open the door and there is Yasmin, excitedly running to me, saying something that sounded like 'bird-to-buy'??? She hastily grabs my hand, nudges me toward the carpet and proudly points to her latest Lego creation. Ahhh, she had built the now (in)famous Burj Dubai, in our very own living room. Okay, so grandma taught her to say 'Burj Dubai' (almost) but to Yasmin, it's a tall Lego tower she gets to build up. Here are three mini models of her 'bird-to-buy'.

Model 1

Model 2

Model 3

Model 3 collapses ... opps!