abundant air airy balls balls-of-fluff fluff fluffy furry gray grey hairy plant plants round rounded seed seed-balls seed-dispersal seeds shape shapes soft surface texture textures weed weeds wind animals bird seed birds birdseed eat empty fat ball fat balls feed food hunger hungry nature nutrition sky wildlife winter Australian ball ball shaped bloom bush bush plant color colorful colour colourful flora flower full bloom greenish greenish tips hakea loops loopy native pink seed pods shrub stamen strange tendrils unusual unusual shape