A flock of budgerigars swarm across the fields at Boulia in far west Queensland on October 15, 2009. Photo: Ann BrittonA flock of budgerigars swarm across the fields at Boulia in far west Queensland on October 6, 2009. Photo: Ann BrittonA flock of budgerigars takes to the air near Boulia in far-west Queensland on October 6, 2009. Photo: Ann BrittonA flock of budgerigars sit on the ground near Boulia in far west Queensland on October 6, 2009. Photo: Ann BrittonA flock of budgerigars takes to the air near Boulia in far-west Queensland on October 6, 2009. Photo: Ann BrittonA flock of budgerigars takes to the air near Boulia in far-west Queensland on October 6, 2009. Photo: Ann BrittonA flock of budgerigars takes to the air near Boulia in far-west Queensland on October 6, 2009. Photo: Ann BrittonA flock of budgerigars sit in a tree near Boulia in far-west Queensland on October 6, 2009. Photo: Ann BrittonA flock of budgerigars takes to the air near Boulia in far west Queensland on October 6, 2009. Photo: Ann BrittonA flock of budgerigars mid-flight near Boulia in far west Queensland on October 6, 2009. Photo: Ann Britton