Which is a perching birds preying birds wading birds climbing birds water birds?

Answer 1

This isn't about what perching means(just to let you know right now).

Terms like 'water bird' or 'perching' are common terms for certain groups of birds and bare no relation to true taxonomy or avian evolution.

Still a few examples:

Perching birds are birds that perch, including all passerines (robins, chats, thrushes, crows, orioles, birds of paradise, bower birds) and some nonpasserines (like mousebirds, kingfishers, trogons)

Birds of Prey include eagles, owls, eagle-owls, vultures, falcons, caracaras, secretary birds and sometimes even shrikes and bush shrikes are classified as birds of prey. Birds of prey are those that belong in Strigiformes (owls) and the truest birds of prey are in the Falconiformes (eagles, hawks, secretary birds, vultures, falcons, hobbies, merlins, kestrels, sparrowhawks, buzzards, harriers, caracaras and gymnogenes, not to mention fisheagles and snake-eagles).

Water birds include sea birds (Procellariformes, Pelecaniformes and Sphenisciformes) and include Penguins, albatrosses, pelicans, cormorants, petrels, shearwaters, prions and storm petrels, and of course tropic birds, gannets and frigate birds.

Water birds of freshwater environs feature members of Anseriformes and Ciconiiformes. Ducks and Geese and Swans and Screamers are Anseriformes and float on the water. Others are wading birds in Ciconiiformes and feature storks, ibises and hamerheads (hamerkop is the name in South Africa) and whale headed storks (shoebills), herons and egrets.

Other wading birds feature gallinules, moorhens, snipes and jacanas from Gruiformes and also much of Charadriformes, to name but a few, sandpipers and plovers, oystercatchers and thick-knees (or dikkops).

As you see, there is much disagreement about names, dikkops are also called thick-knees or stone curlews thus it is better to avoid confusion and rather use the scientific name which is internationally recognised.