Southern boobook smallest owl on the Australian mainland, the southern boobook is long. The nominate subspecies is the largest. It has short, rounded wings and a short tail, with a compact silhouette in flight. Southern boobooks on the Australian mainland follow Bergmann's rule, in that birds from cooler and more southerly parts of the range tend to be larger. Thus, birds from the Canberra region weigh around while those from the Cape York Peninsula and Broome are around . Females tend to be a little larger and heavier than males, with males weighing and females . The southern boobook has generally dark
Australasian pipit New Zealand due to the improvement of pastures, use of pesticides and predation by introduced species. A number of subspecies are recognised: Australasian pipit The Australasian pipit ("Anthus novaeseelandiae") is a fairly small passerine bird of open country in Australia, New Zealand and New Guinea. It belongs to the pipit genus "Anthus" in the family Motacillidae. It was formerly lumped together with the Richard's, African, Mountain and Paddyfield pipits in a single species: Richard's pipit, "Anthus novaeseelandiae". Some authors split the Australasian pipit further into two species: Australian pipit ("Anthus australis") in Australia and New Guinea and New Zealand pipit