<prompt> Pfupisa nyaya yacho: Inorema hafu yeuniti bedzi uye musha wayo womuzvarirwo muti. Asi shiri duku inoimba inonzi blackpoll warbler inogara ichibhururuka isina kumbomira kwemakiromita anosvika 1.700 ichiyambuka gungwa rakavhurika, masayendisiti akasimbisa kudaro. Nzendo idzi dzinoshamisa dzinenge dzisingachaiti, maererano nomumwe wevaongorori akaisa michina yokutevera shiri 40. Rwendo rurefu: Gondo dema rinobhururuka nguva dzose rwendo runosvika makiromita 1.700, richibhururuka risingamiri kuzorora, kudya kana kunwa mhiri kweAtlantic. Nyanzvi dzave dzichinetseka kwenguva refu nezvezviratidzo zvinonyengera zvairatidza kuti shiri iyi yaikwanisa kutama zvikuru pakati peNorth neSouth America. Zvino vane uchapupu hwokuti chaizvoizvo rinobhururuka risingamiri kuzorora, kudya kana kuti kunwa mhiri kweAtlantic. Kusiyana nedzimwe shiri dzinoimba dzinotama dzichienda kumaodzanyemba kuti dzipedze mwaka wechando, shiri iyi inonzi warbler haiiti zvokufamba nomumhenderekedzo yegungwa ichipfuura nomuMexico neCentral America. Panzvimbo pezvo inoisa pangozi rufu kupfurikidza nokubhururuka mazana amakiromita kubva kunyika kunyange zvazvo isingagoni kumhara pamvura ndokurarama. Kufamba kwakanaka: shiri inonzi blackpoll warbler yakapfeka mudziyo muduku wokutevera. Masayendisiti eU.S. akashamiswa paakaongorora mashoko kubva kune dzimwe shiri dzavakatevera kubva kuNew England neCanada kuenda kuCaribbean, Venezuela neColombia. Dr. Bill DeLuca, weUniversity of Massachusetts paAmherst, akati: Zvakanga zvichinakidza zvikuru kudzosa shiri dzokudzokera, nokuti basa radzo rokutama pacharo riri pedyo nokusaita. Patakasvika panzvimbo yacho, takaona kuti rwendo rwezvikwekwe rwakanga ruri chaizvoizvo zvakananga pamusoro peAtlantic. Nzendo dzaifambwa dzaiva pakati pemakiromita 1 410 ne1 721. Akawedzera kuti: Kana dziri shiri duku dzinoimba, iye zvino ndipo patiri kutanga kunzwisisa nzira dzadzo dzinotama dzichienda kunzvimbo dzine mamiriro okunze ane mwero dzinoberekera munzvimbo dzinopisa dzinotonhora munguva yechando. Tinofara zvikuru kuzivisa kuti iyi ndeimwe yenzendo refu zvikurusa dzisingaperi pamusoro pemvura dzati dzamborekodhwa dzeshiri dzinoimba, uye pakupedzisira inosimbisa icho chave chichifungidzirwa kwenguva refu kuva chimwe chezvinhu zvinoshamisa zvikurusa zvinotama panyika. Nokuda kwefundo yacho, yakabudiswa mu...  <response>: Shiri inonzi blackpoll warbler inofamba isina kumbomira kwemakiromita anosvika 1 700. Inobhururuka isingamiri kuzorora, kudya kana kunwa mhiri kweAtlantic. Masayendisiti eU.S. akatevera shiri kubva kuNew England kuenda kuCaribbean. 