The bird collection is nice. Well designed and works well for me. I like the movable "drawer" with unused pieces. It slides up and down plus opens and shuts. Double tap a piece and it goes back in drawer out of the way. Very well done!!! There are several collections I am interested in but dont see a way to preview them before spending my money. I prefer seeing before buying. Having trouble with crashing. When finished puzzle it crashed before could enjoy looking at it...disappointing. Also, when leave partially done puzzle and come back it wont let me continue...have to start over.