Australasian grebe (Tachybaptus novaehollandiae). Faber Castell polychromos pastels on un-sanded pastel paper. 30 x 21 cm. Grebes are challenging birds to photograph well because they're so small, and often out in the middle of lakes, spending 3/4 of their time under the surface of the water. This grebe is a mature adult in breeding plumage.