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crane (n.): Old English cran "large wading bird," common Germanic (cognates: Old Saxon krano, Old High German krano, German Kranich, and, with unexplained change of consonant, Old Norse trani), from PIE *gere-no-, suffixed form of root *gere- (2) "to cry hoarsely," also the name of the crane (cognates: Greek geranos, Latin grus, Welsh garan, Lithuanian garnys "heron, stork"). Thus the name is perhaps an echo of its cry in ancient ears. Metaphoric use for "machine with a long arm" is first attested late 13c. (a sense also in equivalent words in German and Greek).
grallatorial (adj.): "of or pertaining to wading birds," 1825, from Latin grallotores "stilt-walkers," plural of grallator "one who walks on stilts," from grallae "stilts," ultimately from stem of gradi "to walk, go" (see grade (n.)). Grallatores was formerly used as the name of an order of birds comprising herons, cranes, etc. Related: Grallatory (1835).
rail (n.2): "small wading bird," mid-15c., from Old French raale (13c.), related to râler "to rattle," of unknown origin, perhaps imitative of its cry.
sanderling (n.): wading bird (Crocethia alba), c. 1600, probably from sand (n.) + diminutive suffix -ling, but OED suggests possible derivation from Old English *sand-yrðling, with second element yrðling "plowman" (literally "earthling").
wade (v.): Old English wadan "to go forward, proceed, move, stride, advance" (the modern sense perhaps represented in oferwaden "wade across"), from Proto-Germanic *wadan (cognates: Old Norse vaða, Danish vade, Old Frisian wada, Dutch waden, Old High German watan, German waten "to wade"), from PIE root *wadh- (2) "to go," found only in Germanic and Latin (cognates: Latin vadere "to go," vadum "shoal, ford," vadare "to wade"). Italian guado, French gué "ford" are Germanic loan-words.

Specifically "walk into or through water" (or any substance which impedes the free motion of limbs) c. 1200. Originally a strong verb (past tense wod, past participle wad); weak since 16c. Figurative sense of "to go into" (action, battle, etc.) is recorded from late 14c. Related: Waded; wading.
Forbade to wade through slaughter to a throne,
And shut the gates of mercy on mankind,

[Gray, "Elegy Written in a Country Churchyard"]
wetback (n.): "illegal Mexican immigrant to the U.S.," c. 1924, from wet (adj.) + back (n.); from notion of wading the Rio Grande.
avocet: "A long-legged wading bird with a slender upturned bill and strikingly patterned plumage", Late 17th century: from French avocette, from Italian avosetta.
phalarope: "A small wading or swimming bird with a straight bill and lobed feet, unusual in that the female is more brightly coloured than the male", Late 18th century: from French, from modern Latin Phalaropus, formed irregularly from Greek phalaris 'coot' + pous, pod- 'foot'.