中)(新)(网)(3月)(25日)(电)(据)(“中)(央)(社)(”报)(道)(,美)(国)(华)(盛)(顿)(特)(区)(国)(家)(广)(场)(前)(的)(加)(拿)(大)(黑)(雁)(排)(泄)(量)(惊)(人)(,每)(只)(雁)(每)(天)(排)(泄)(多)(达)(1.4公)(斤)(排)(泄)(物)(。美)(国)(国)(家)(公)(园)(服)(务)(处)(正)(考)(虑)(“开)(门)(放)(狗)(”,对)(付)(的)(加)(拿)(大)(雁)(。据)(报)(道)(,美)(国)(国)(家)(公)(园)(服)(务)(处)(打)(算)(利)(用)(边)(境)(牧)(羊)(犬)(扫)(荡)(越)(来)(越)(多)(的)(加)(拿)(大)(雁)(。这)(些)(禽)(鸟)(陆)(续)(群)(集)(林)(肯)(纪)(念)(堂)(、景)(明)(湖)(、华)(盛)(顿)(纪)(念)(碑)(空)(地)(和)(肯)(尼)(迪)(冰)(球)(场)(等)(景)(点)(。美)(国)(国)(家)(公)(园)(服)(务)(处)(发)(表)(声)(明)(说)(,这)(些)(狗)(狗)(可)(望)(“让)(加)(拿)(大)(雁)(弃)(守)(这)(些)(草)(坪)(和)(水)(池)(,到)(别)(处)(落)(脚)(”。声)(明)(说)(,这)(些)(加)(拿)(大)(雁)(每)(只)(平)(均)(一)(天)(排)(便)(0.9至)(1.4公)(斤)(。这)(些)(排)(泄)(物)(会)(毁)(坏)(景)(明)(湖)(的)(泵)(和)(过)(滤)(设)(备)(、降)(低)(园)(区)(游)(览)(质)(量)(,也)(可)(能)(造)(成)(公)(众)(卫)(生)(危)(害)(。美)(国)(鱼)(类)(暨)(野)(生)(动)(物)(管)(理)(局)(说)(,加)(拿)(大)(雁)(在)(美)(国)(下)(48州)(的)(数)(量)(将)(快)(速)(增)(加)(。