vers aw ▁band ing ▁until ▁the ▁establishment ▁of ▁federal ▁programs ▁in ▁the ▁U . S . ▁( 1 9 2 0 ) ▁and ▁Canada ▁( 1 9 2 3 ) ▁purs u ant ▁to ▁the ▁Mig rat ory ▁Bird ▁Tre aty ▁of ▁ 1 9 1 8 . ▁ ▁Term in ology ▁and ▁techniques ▁▁ ▁Bird ▁ring ing ▁is ▁the ▁term ▁used ▁in ▁the ▁UK ▁and ▁in ▁some ▁other ▁parts ▁of ▁Europe . ▁ ▁Bird ▁band ing ▁is ▁the ▁term ▁used ▁in ▁the ▁US . ▁Organ ised ▁ring ing ▁efforts ▁are ▁called ▁ring ing ▁or ▁band ing ▁schemes , ▁and ▁the ▁organis ations ▁that ▁run ▁them ▁are ▁ring ing ▁or ▁band ing ▁authorities . ▁( B ird s ▁are ▁ring ed ▁rather ▁than ▁r ung ) ▁Those ▁who ▁ring ▁or ▁band ▁birds ▁are ▁known ▁as ▁ring ers ▁or ▁band ers , ▁and ▁they ▁are ▁typically ▁active ▁at ▁ring ing ▁or ▁band ing ▁stations . ▁ ▁Bird s ▁may ▁be ▁captured ▁by ▁being ▁taken ▁as ▁young ▁birds ▁at ▁the ▁nest , ▁or ▁as ▁adult s , ▁captured ▁in ▁fine ▁mist ▁n ets , ▁b ait ed ▁tra ps , ▁Hel ig ol and ▁tra ps , ▁drag ▁n ets , ▁can non ▁n ets , ▁or ▁by ▁other ▁methods . ▁R apt ors ▁may ▁be ▁caught ▁by ▁many ▁methods , ▁including ▁bal - chat ri ▁tra ps . ▁ ▁When ▁a ▁bird ▁is ▁caught , ▁a ▁ring ▁of ▁suitable ▁size ▁( us ually ▁made ▁of ▁al umin ium ▁or ▁other ▁light weight ▁material )