Great Crested Grebe
Podiceps cristatus
The great crested grebe is the largest species of grebe in the Old World, though some larger species occur in the Americas. They measure 46–51 cm (18–20 in) long with a 59–73 cm (23–29 in) wingspan and weigh 0.9 to 1.5 kg (2.0 to 3.3 lb). It is an excellent swimmer and diver, and pursues its fish prey underwater. The adults are unmistakable in summer with head and neck decorations. In winter, this is whiter than most grebes, with white above the eye, and a pink bill. Birds resident in warmer tropical and subtropical regions (particularly in subspecies P. c. infuscatus and P. c.
ID text from Wikipedia, CC BY-SA 4.0
Horned Grebe
Podiceps auritus
The species can be recognised by its orange-red and black breeding plumage, its black and white non-breeding plumage, and its characteristic "horns". It is 31–38 cm (12–15 in) long, has a wingspan 55–74 cm (22–29 in) wide and weighs 300–570 g (11–20 oz). It has a moderately long neck, flat forehead and a rear crown of black feathers. Its beak is straight and pointed, with a white tip. The breeding plumage has bright erectable "horns", black fan-shaped cheek feathers and an overall red-and-black colour. Voice: Young begin calling for begging purposes in a slightly trilled peeping noise, similar to that of a domestic chick. As they mature, their song changes to a more adult-like chittering. Their typical advertising call is loud and nasally "aaarrh" descending in a pitch and ending in a trill.
ID text from Wikipedia, CC BY-SA 4.0
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