commiss recommend decemb member state protect bird habitat eec titl ii chapter paragraph part programm action european commun environ approv council novemb call action protect natur environ section chapter specif action protect bird anim speci main conclus studi aspect bird protect carri behalf commiss quot zoologisch gesellschaft von quot frankfurt main direct professor dr bernhard grzimek collabor major intern organ concern summar speci wildbird live commun increas number speci declin case rapidli number speci extinct recent decad vari member state itali germani belgium commun number speci threaten extinct figur individu member state case higher main reason high mortal rate declin speci bird intens captur man hunt trap member state major member state affect loss habitat due type develop drainag scheme ill consid land realloc project urban tourist develop poison food pollut environ import role plai bird maintain ecolog balanc qualiti natur environ jeopard excess mortal rate half autochthon speci europ situat confin territori countri give inadequ protect bird extend territori countri constitut migrat area typic tran frontier intern environ problem solv isol measur nation level detriment effect ecolog balanc excess mortal rate half bird speci produc mark advers effect number econom sector agricultur tourism scientif field ornitholog etholog biologi ecolog sociolog hand advers consequ caus econom sector reason restrict number bird captur sport gun ammunit industri trade estim strata european societi bird import element qualiti life larg number peopl towndwel main point contact natur public opinion come migratori bird common heritag exclus properti countri time protect bird speci wild flora fauna significantli improv member state adher intern convent protect bird adopt pari octob convent conserv wetland intern import waterfowl habitat adopt ramsar februari intern convent protect bird adopt pari replac extend convent protect bird agricultur conclud pari european state contradistinct convent basic motiv ecolog consider articl introduc ethic arguement make offenc inflict wanton suffer bird convent appli except wild bird aim provid oj strict protect speci reproduct migrat period speci threaten extinct quot interest quot round year protect except provis convent grant acced state case speci sheer number detriment agricultur convent forc januari convent wetland intern import waterfowl habitat adopt februari intern confer conven iran govern ramsar enter forc state notifi unit kingdom state finland iran switzerland soviet union deposit instrument ratif convent gener regard vital import protect ecolog balanc irreplac natur heritag scope mere protect waterfowl habitat commiss anxiou contribut protect improv environ qualiti life regard treati establish european econom commun recommend member state acced quickli abovement convent brussel decemb commiss presid françoi xavier ortoli