[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-315888-105":59,"doc-detail-315888-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","field-notes-vol-2-issue-2-fall-2009-shedding-light-on-songbird-migration","Field Notes - Vol. 2 - Issue 2 - Fall 2009 - Shedding Light on Songbird Migration","","Field Notes Vol. 2, Issue 2, Fall 2009 explores how researchers track migratory songbirds to support conservation. It highlights why small birds struggle to carry extra tracking weight and describes geolocator-based studies, including work by Bridget Stutchbury, that reveal migration routes and overwintering areas. The issue also presents conservation innovation in caring for Bicknell’s Thrush on Hispaniola and outlines VCE’s ongoing efforts and community engagement.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/field-notes-vol-2-issue-2-fall-2009-shedding-light-on-songbird-migration/315888/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/field-notes-vol-2-issue-2-fall-2009-shedding-light-on-songbird-migration/315888.png","ImageObject",300,407,{"name":92,"@type":93},"Felix Montgomery","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-23","2026-09-20",true,{"@type":102,"interactionType":103,"userInteractionCount":34},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"Why has tracking an individual songbird through its entire migration been difficult?","Question",{"text":112,"@type":113},"Songbirds are small and can’t take on much extra weight, limiting what tracking methods they can carry. Despite advances for other bird groups, the full annual trip of individual songbirds had not been tracked until newer approaches.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What tools did Bridget Stutchbury use to map songbird migration routes?",{"text":117,"@type":113},"She attached solar geolocators—light-sensitive devices weighing less than a dime—to Purple Martins and Wood Thrushes. The retrieved data produced clearer migration routes and overwintering areas.",{"name":119,"@type":110,"acceptedAnswer":120},"How does the issue connect migration tracking data to conservation action?",{"text":121,"@type":113},"It emphasizes that identifying timing, pathways, stop-over areas, and connectivity is essential for meaningful conservation planning. The article notes that some current knowledge remains speculative until tracking data is obtained and verified.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},315888,1790535636,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":34,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":41,"preview_page_count":4},549768064778,"https://ap-avatar.wpscdn.com/davatar_6f874abed73319feea01a86fa6f0fab8","Field Notes  \nVol. 2, Issue 2 Fall 2009  \nUniting P e ople and Scie nce for Cons e r v ation  \nSHEDDING LIGHT ON SONGBIRD MIGRATION  \nEver since the day in 1803, when John James Audubon tied thin silver cords to a brood of Eastern Phoebes near 3KLODGHOSKLD􀀏 DQG ODWHU FRQÀUPHG WKDW WZR UHWXUQHG WR WKH neighbourhood the following year, ornithologists have been devising ways to track songbird migration.  \nDespite great strides, no one had tracked an individual songbird throughout its annual migration. We have learned about incredible movements of raptors, seabirds, and shorebirds, as these large-bodied migrants carry transmitters beaming their locations to passing satellites. The conundrum for songbirds  \n“Never before has anyone been able to track songbirds for their entire migratory trip,” said Stutchbury, a professor of biology at York University’s Faculty of Science & EngineerLQJ LQ 7RURQWR􀀑 ´:H·UH H[FLWHG WR DFKLHYH WKLV VFLHQWLÀF ÀUVW􀀑µ  \nVCE biologists were among the many researchers eager for an inside look into the elusive lives of songbirds during their non-breeding season. Many migrant songbirds cover impressive distances of over 5,000 km between breeding and wintering sites, yet the exact timing, pathways followed, migratory stop-over areas, and degree of connectivity between  \nhas been their small size—they simply can’t take on much extra weight.  \nEnter Canadian ecologist Bridget Stutchbury. Two years ago she attached solar geolocators—miniature, light-sensitive devices, each weighing less than a dime—toa handful of Purple Martinsand Wood Thrushes. One year later, the data she retrieved at her Pennsylvania study site \\LHOGHG WKH ÀUVW FOHDU SLFWXUHof individual songbird migration routes and over-wintering  \nareas. Her revolutionary study, reported in the journal Science, ushered in a new era of migratory songbird research.  \nall of these sites remain only speculative. These data are integral for any meaningful conservation action plan.  \nDuring 2007, Stutchbury and her team mounted small geolocators on 14 breeding Wood Thrushes and 20 Purple Martins in Pennsylvania.  \nTheir hopes rested on the site faithfulness of these birds.  \nTracking their fall departures, speed, and migratory pathways to South and Central America, and journies back  \nto North America would be  \npossible only through recapturing them a year later. Recovering the devices and downloading their precious data would  \nCONTINUED ON PAGE 4  \n© Kent McFarland  \nA BICKNELL’S THRUSH WEARING A “BACKPACK” SOLAR GEOLOCATOR.  \nAN INNOVATIVE APPROACH TO CONSERVING BICKNELL’S THRUSH  \nProfound conservation issues demand inventive, bold solutions. We’re all challenged to “think big” nowadays, and VCE is doing just that on Hispaniola. As biologists, we thrive on understanding processes and events at small scales, mainly at individual and population levels. Yet truly effective conservation requires that we transcend societal, political and ecological boundaries.  \nAfter 15 years of investigating Bicknell’s Thrush winter ecology on the island, seeking to unravel the species’ fascinating but complex conservation status (see article on pg. 3), VCE’s work has taken on a new dimension. We’re collaborating with  \nCONTINUED ON PAGE 5  \nVIEW OF THE CORDILLERA SEPTENTRIONAL IN THE DOMINICAN REPUBLIC.  \n© Pat Johnson  \n[www.vtecostudies. org](www.vtecostudies. org)  \nField Notes  \n)DOO 􀀕􀀓􀀓􀀜 􀂇 9ROXPH 􀀕􀀏 1R􀀑 􀀕  \nDirector  \n&KULV 5LPPHU  \nAssociate Director  \nKent McFarland  \nConservation Biologists  \nSteve Faccio Eric Hanson Patrick Johnson Rosalind Renfrew Sara Zahendra  \n&KLHI $GPLQLVWUDWLYH 2IÀFHU  \nMelissa MacKenzie  \nIntern  \nSarah Mahlab  \nBoard of Directors  \nJohn Peiffer, Chair Brian Farrell David Key Jeff Marshall &KULV 5LPPHU  \n7KH 9HUPRQW &HQWHU IRU (FRVWXGLHV 􀀋9&(􀀌 LV D QRQSURÀW RUJDQL]DWLRQZKRVH PLVVLRQ LV WR DGYDQFH WKH conservation of wildlife through UHVHDUFK􀀏 PRQLWRULQJ DQG FLWL]HQ HQJDJHPHQW􀀑 :LWK D UHDFKH[WHQGLQJ IURP QRUWKHUQ 1HZ England through the Caribbe","cbCaifhP1nc8qMLN","https://ap.wps.com/l/cbCaifhP1nc8qMLN","pdf",779756,12,"English","# Field Notes\n## Shedding Light on Songbird Migration\n## An Innovative Approach to Conserving Bicknell’s Thrush\n## VCE View","[{\"question\":\"Why has tracking an individual songbird through its entire migration been difficult?\",\"answer\":\"Songbirds are small and can’t take on much extra weight, limiting what tracking methods they can carry. Despite advances for other bird groups, the full annual trip of individual songbirds had not been tracked until newer approaches.\"},{\"question\":\"What tools did Bridget Stutchbury use to map songbird migration routes?\",\"answer\":\"She attached solar geolocators—light-sensitive devices weighing less than a dime—to Purple Martins and Wood Thrushes. The retrieved data produced clearer migration routes and overwintering areas.\"},{\"question\":\"How does the issue connect migration tracking data to conservation action?\",\"answer\":\"It emphasizes that identifying timing, pathways, stop-over areas, and connectivity is essential for meaningful conservation planning. The article notes that some current knowledge remains speculative until tracking data is obtained and verified.\"}]","Field Notes - Vol. 2 - Issue 2 - Fall 2009 - Shedding Light on Songbird Migration | PDF",1789907659]