A female Collared Sparrowhawk (Accipiter cirrhocephalus) perched in a tree watching the Zebra Finches drinking from a puddle. Check out the long middle toe of this girl! This is one of the ways to tell Collared Sparrowhawks from the almost identical looking Brown Goshawks. The other ways are the shape of the tail (square vs. rounded) and Goshawks are bigger than Sparrowhawks, although this is tricky. Unlike most mammals, birds of prey exhibit reverse sexual dimorphism. This means that the female (who has to have enough energy to create and incubate an egg) is usually larger than the males (who keep small so they are more manoeuvrable). This is especially apparent in the bird eating raptors such as these guys! Hart’s Range, Northern Territory, Australia.