52 HOW TO IDENTIFY NEW ZEALAND BIRDS 
Under parts dull ash colour and brownish black. Legs 
bright reddish brown. Flight none. Haunts, seashore and 
outskirts of wood. Moves like other Rails flirting tail. 
Found south of South Island. Distinguished from other 
Wekas, being usually found: by sea coast and by dark 
colouring. (Gruiformes.\ 744.4 7 ee 
22 in. Caspian Tern (Hydroprogne caspia). Head white 
spotted black, but in Spring satiny black. Upper parts 
silvery grey, primaries dark grey. Under parts pearly white. 
Legs blackish brown. Flight easy and graceful on wing, 
often carries head vertically, bill pointed downwards, flight 
performed in wide circles. Haunts, coast and mouths of 
tidal rivers. When resting on ground disproportionate head 
makes it appear ungainly. Usually found in pairs. Uniform , 
dove grey back. Weak mewing note. Charadriiformes) Latofe-reso 
22 in. Blue or Mountain Duck (Hymenolaimus malacorhyn- 
chus). Head olive, slightly metallic gloss. Bill white. 
Upper parts pale slate blue. Under parts pale slate blue, 
spotted chestnut, varied white. Legs dark brown. Flies 
only when hard pressed. Haunts, mountain streams. Seldom 
dives, swims rapidly head carried low, turns in water as on 
a pivot. Burrows and climbs by aid of wings. Peculiar 
whistle ‘‘Whio.’’, Distinguished by blue colouring. { Anseri- 
a 
formes. rp meee ae bee 
22 in. Great Crested Grebe (Podiceps cristatus) Summer 
has crest dark brown, ruff chestnut and black, cheeks white. 
Winter cheeks and front of neck white. Upper parts dark 
brown, secondaries white. Legs blackish green. Under- 
parts white. Haunts, inland lakes and ponds. Winter coasts. 
Dives with ease, swims well, sitting rather high and holding 
neck straight up. On land shuffles along. Long straight 
Colymbiformes.) Tordiieslf, hdd 
ra s ° a ° 
Jarrier (Circus approxi- 
mans). M. 
grey with brown bars. Under parts pale tawny, dark in 
centre of each feather, under wing fawn. Legs yellow. 
Flight slow, soars in wide circles, wings inclined upwards. 
Young cannot soar, only fly. Haunts, fern-clad hills, plains, 
marshes, open sea beaches, not dense bush. Moves in a series 
of hops, toes turned inwards. When gorged assumes erect 
motionless position. Distinguished by peculiar owl-like 
facial dise. Length of wing ae when ngreged., Down- 
ward markings of, all Harrijers., (Acciptres.) Jaleewf ap, 
23 in. The at debe #, wn Kiwi (Apteryz a st lis) . 
Head dark greyish brown, bili white, slightly curved. Upper 
parts dark rufous streaked blackish brown. Under parts 
