Wader

Waders, called shorebirds in North America (where `wader` is used to refer to long-legged wading birds such as storks and herons), are members of the order Charadriiformes, excluding the more marine web-footed seabird groups. The latter are the skuas (Stercorariidae), gulls (Laridae), terns (Sternidae), skimmers (Rynchopidae), and auks (Alcidae).....
Found on http://en.wikipedia.org/wiki/Wader

Wader

• (n.) Any long-legged bird that wades in the water in search of food, especially any species of limicoline or grallatorial birds; -- called also wading bird. See Illust. g, under Aves. • (n.) One who, or that which, wades.
Found on http://thinkexist.com/dictionary/meaning/wader/

Wader

Wad'er noun 1. One who, or that which, wades. 2. (Zoology) Any long-legged bird that wades in the water in search of food, especially any species of limicoline or grallatorial birds; -- called also wading bird . See Illust. g , under Aves .
Found on http://www.encyclo.co.uk/webster/W/1

Wader

Denotes all sandpipers and relatives in the order Charadriiformes. The term is synonymous with shorebird, an alternative term often used widely in the Americas for this group of birds.
Found on http://www.kuwaitbirds.org/birding/glossary

Wader

One of a group of long-legged birds usually associated with marshland, mudflats or shallow water, such as Curlew, Common Sandpiper or Avocet. The exception to this rule is the Woodcock, which still requires soft ground in which to probe for food with its long bill, but nests in woodland.
Found on https://www.birdfood.co.uk/glossary
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