Several years ago Himself and our two small kidlets were walking in the Blue Mountains west of Sydney (on the old Lapstone zig-zag track, for anyone who knows the area) when we came across a bower bird's bower filled with blue objects - drinking straws, plastic bottle lids, clothes pegs, bits of blue thread. We didn't have the camera with us at the time but I have the photo in my mind.

Cheers
JennieG