 Size variation in the noisy miner over its range follows Bergmann 's rule ; namely , birds tend to be larger where the climate is colder . Adults from central @-@ eastern and northern Queensland tend to have little or no olive @-@ yellow edging to the feathers of the back and wings , and have a wider white fringe on the feathers of the hind @-@ neck and back , giving birds from Queensland the appearance of having more distinctive scalloping than other populations . Wing length generally increases with latitude and M. <unk> leachi has <unk> shorter wings than the nominate race , although no significant difference in wing length was found in a study of populations north of 30 ° S and south of the Murray River . The subspecies leachi also has finer scalloping on the hind @-@ neck than the nominate race , a more intense yellow tinge to the wing panels , and a slightly broader off @-@ white tip to the tail . 
