The Sticky Business Achievement in Little Kitty, Big City asks you to destroy 10 old birds’ nests, but where can you find them all? The majority of these nests are hidden and must be discovered through platform puzzles, which makes it tricky to spot them.Little Kitty Big City: Where to find all old birds’ nestsScreenshot: PC InvasionOld bird’s nest 1 (6)Start near your house where the dog is (make sure to feed them a bone to get past the dog) and climb on top of the boxes in front of where they’re eating. Once up top, make your way around to the open window to a bathroom, and you’ll find the bird nest sitting near the window.Screenshots: PC InvasionOld bird’s nest 2 (2)Near the small supermarket with the black cat, walk across the street to the small alley with a puddle. You’ll see an open gate, so walk through, then under the open hole in the fence.In this garden, you’ll want to hop up on the red and green…