appearance birds breed calm chicken chickens chook chooks color colour companions companionship Dirt docile earth farm feathers fluffy follow following fowl free freerange friendly grass hen hens leader leading light loose open out outdoors outside plumage poultry together walking wandering Australian beaks blue Cockatoos corellas demonstrative destructive electrical-supply electricity falconiformes fauna flock garden-pest iconic native Noisy overhead-power-lines perch perching perching-birds pest pet powerlines powerpoles root-eater show-off sky suburban tail talker vocal white wildlife wires