{"id":24214,"date":"2024-03-15T09:55:33","date_gmt":"2024-03-15T13:55:33","guid":{"rendered":"https:\/\/alumni.cornell.edu\/cornellians\/?p=24214"},"modified":"2024-03-15T09:57:28","modified_gmt":"2024-03-15T13:57:28","slug":"kaestner-birder","status":"publish","type":"post","link":"https:\/\/alumni.cornell.edu\/cornellians\/kaestner-birder\/","title":{"rendered":"Edging Toward a \u2018Life List\u2019 of 10,000, Leading Birder Flies High"},"content":{"rendered":"\n<p class=\"has-large-font-size\">Retired Foreign Service officer Peter Kaestner \u201975, BA \u201976, holds the world record for viewing the most species<\/p>\n\n\n\n<p><em>Editor&#8217;s note: In early February 2024, about six months after this story originally ran, Kaester <a href=\"https:\/\/www.nytimes.com\/2024\/03\/11\/science\/birds-birdwatching-record-kaestner.html?partner=slack&amp;smid=sl-share\" target=\"_blank\" rel=\"noopener noreferrer\">achieved his goal<\/a> with the viewing of his 10,000th bird\u2014an orange-tufted spiderhunter\u2014during a trip to the Philippines.<\/em><\/p>\n\n\n\n<p>By <strong>Lindsay Lennon<\/strong><\/p>\n\n\n\n<p class=\"has-drop-cap\">Early in his career as a U.S. diplomat, avid birder Peter Kaestner \u201975, BA \u201976, arranged to spend a day off when he was on an assignment abroad. He visited a tiny South Pacific island, where he set out to observe the Kolombangara leaf warbler.<\/p>\n\n\n\n<div class=\"wp-block-media-text alignwide has-media-on-the-right is-stacked-on-mobile\"><div class=\"wp-block-media-text__content\">\n<p>The expedition turned harrowing: after losing his way, he spent two days alone on a volcanic mountain, with no warbler to show for it. <\/p>\n\n\n\n<p>While grateful to survive, Kaestner was disappointed to miss his quarry. But he returned months later\u2014this time, with a guide and camping gear\u2014and finally added the warbler to his \u201clife list,\u201d the term of art for the number of bird species a person has observed.<\/p>\n\n\n\n<p>Now\u2014with a life list of more than 9,800 species\u2014Kaestner officially holds the world record in birding. But he won\u2019t rest until he has met his personal goal of 10,000.<\/p>\n<\/div><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"813\" height=\"1016\" src=\"https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61670004-A.jpg\" alt=\"A man on a nature trail holding sound recording gear\" class=\"wp-image-24216 size-full\" srcset=\"https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61670004-A.jpg 813w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61670004-A-240x300.jpg 240w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61670004-A-768x960.jpg 768w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61670004-A-632x790.jpg 632w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61670004-A-316x395.jpg 316w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61670004-A-280x350.jpg 280w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61670004-A-140x175.jpg 140w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61670004-A-70x87.jpg 70w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61670004-A-400x500.jpg 400w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61670004-A-200x250.jpg 200w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61670004-A-100x125.jpg 100w\" sizes=\"auto, (max-width: 813px) 100vw, 813px\" \/><figcaption>Recording Congo forest birds while serving in the Peace Corps in Zaire. (<em>Arnold Small<\/em>)<\/figcaption><\/figure><\/div>\n\n\n\n<p>\u201cI love numbers\u2014I\u2019m <em>wacko<\/em> about numbers,\u201d admits Kaestner, speaking from his home in the Baltimore suburbs, a Carolina wren chirping outside. \u201cI just kept plugging away, seeing as many birds as I could, and it\u2019s only been in the last decade or so that I realized I was close enough to the leaders that I had a chance of competing to be number one.\u201d<\/p>\n\n\n\n<p>How do serious birders like Kaestner document their observations and officially add \u201clifers\u201d (new species) to their lists? <\/p>\n\n\n\n<p>While Kaestner explains that supporting evidence\u2014like photos, audio recordings, and written documentation\u2014is helpful, a birder\u2019s established track record largely determines the validity of their sightings.<\/p>\n\n\n\n<p>And until recently, he notes, observing 10,000 bird species wasn\u2019t even possible.<\/p>\n\n\n\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"668\" height=\"835\" src=\"https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/f835ad18-eda3-48fd-8bcf-e361de4ecff7-1.jpg\" alt=\"A man with a bird on his hand\" class=\"wp-image-24218 size-full\" srcset=\"https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/f835ad18-eda3-48fd-8bcf-e361de4ecff7-1.jpg 668w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/f835ad18-eda3-48fd-8bcf-e361de4ecff7-1-240x300.jpg 240w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/f835ad18-eda3-48fd-8bcf-e361de4ecff7-1-632x790.jpg 632w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/f835ad18-eda3-48fd-8bcf-e361de4ecff7-1-316x395.jpg 316w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/f835ad18-eda3-48fd-8bcf-e361de4ecff7-1-280x350.jpg 280w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/f835ad18-eda3-48fd-8bcf-e361de4ecff7-1-140x175.jpg 140w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/f835ad18-eda3-48fd-8bcf-e361de4ecff7-1-70x87.jpg 70w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/f835ad18-eda3-48fd-8bcf-e361de4ecff7-1-400x500.jpg 400w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/f835ad18-eda3-48fd-8bcf-e361de4ecff7-1-200x250.jpg 200w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/f835ad18-eda3-48fd-8bcf-e361de4ecff7-1-100x125.jpg 100w\" sizes=\"auto, (max-width: 668px) 100vw, 668px\" \/><figcaption>With a yellow-billed hornbill in Namibia.<\/figcaption><\/figure><div class=\"wp-block-media-text__content\">\n<p>Back when he was a bio major in Arts &amp; Sciences, there were fewer than 9,000 officially recognized species. <\/p>\n\n\n\n<p>With advances in the science of taxonomy and increased knowledge about the birds, though, the number now tops 11,000. But those very advances also mean that Kaestner\u2019s list is perpetually in flux.<\/p>\n\n\n\n<p>When a scientific finding results in the combining of two species, Kaestner loses a lifer. When scientists split existing species into new ones\u2014and he has already documented seeing them\u2014he gains lifers.<\/p>\n<\/div><\/div>\n\n\n\n<p>Happily, he says, the latter happens far more often than the former. (Additionally, when entirely new species are discovered, the number of potential entries to his list increases.)<\/p>\n\n\n\n<p>Jessie Williamson, a current postdoc with the Lab of Ornithology, accompanied Kaestner on a South American birding expedition in summer 2021, chronicling their journey in an <a href=\"https:\/\/www.outsideonline.com\/culture\/essays-culture\/peter-kaestner-birder\/\" target=\"_blank\" rel=\"noopener noreferrer\">in-depth profile<\/a> of Kaestner for <em>Outside<\/em> magazine.<\/p>\n\n\n\n<p>\u201cJoining the big-lister club requires tremendous sacrifice,\u201d Williamson observes in the piece, published in May 2023. <\/p>\n\n\n\n<p>\u201cFewer than 60 people have ever seen more than 8,000 bird species, and fewer than 20 have gotten above 9,000. It demands exceptional, almost singular, devotion to the pursuit, often to the point of forsaking family, friends, hobbies, and a \u2018normal\u2019 life.\u201d<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>I just kept plugging away, seeing as many birds as I could.<\/p>\n<\/blockquote>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>A birder since early childhood, Kaestner seriously contemplated a career in ornithology\u2014but rather than formally studying our avian friends, he ultimately decided to see as many as he could. <\/p>\n\n\n\n<p>Seeking a career that would allow him to spend significant time overseas, he entered the Foreign Service in 1980 (and prior to that, he served with the Peace Corps in Africa, where he notched some 1,500 species). <\/p>\n\n\n\n<p>Early on, the tallies were easier to come by; he birded wherever work took him and his wife, a fellow Foreign Service officer. During the couple\u2019s time in Colombia, he even discovered a new species: a small brown bird dubbed the <a href=\"https:\/\/ebird.org\/species\/cunant1\" target=\"_blank\" rel=\"noopener noreferrer\">Cundinamarca antpitta<\/a> (<em>Grallaria kaestneri<\/em>).<\/p>\n\n\n\n<figure class=\"wp-block-image alignwide size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/IMG_9132-A-1024x768.jpg\" alt=\"A man with a large white bird flying over his head\" class=\"wp-image-24220\" srcset=\"https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/IMG_9132-A-1024x768.jpg 1024w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/IMG_9132-A-300x225.jpg 300w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/IMG_9132-A-768x576.jpg 768w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/IMG_9132-A-632x474.jpg 632w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/IMG_9132-A-316x237.jpg 316w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/IMG_9132-A-400x300.jpg 400w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/IMG_9132-A-200x150.jpg 200w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/IMG_9132-A-100x75.jpg 100w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/IMG_9132-A.jpg 1031w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">A sooty tern overhead in Australia.<\/figcaption><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>As he and his wife raised two children and he grew more senior within the Foreign Service, birding inevitably took a back seat. But he added to his list wherever he could, in addition to leading hundreds of bird walks all over the world. <\/p>\n\n\n\n<p>\u201cI try very hard, and I\u2019ve tried all my life, to focus my birding on lifers,\u201d he reflects, \u201cand when I\u2019m not getting lifers, doing normal things.\u201d<\/p>\n\n\n\n<p>In addition to having the largest life list, Kaestner holds another world record: in 1986, he became the first person to observe an example of every bird family in the wild (at the time, there were 159)\u2014a feat he achieved when he saw the <a href=\"https:\/\/ebird.org\/species\/rufgna3\" target=\"_blank\" rel=\"noopener noreferrer\">rufous gnateater<\/a> (<em>Conopophaga lineata<\/em>) in South America. <\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"577\" src=\"https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61730006-A-1024x577.jpg\" alt=\"A person walking through a college campus\" class=\"wp-image-24217\" srcset=\"https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61730006-A-1024x577.jpg 1024w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61730006-A-300x169.jpg 300w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61730006-A-768x432.jpg 768w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61730006-A-1536x865.jpg 1536w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61730006-A-800x450.jpg 800w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61730006-A-608x342.jpg 608w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61730006-A-304x171.jpg 304w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61730006-A-152x85.jpg 152w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61730006-A-1184x666.jpg 1184w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61730006-A-592x333.jpg 592w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61730006-A-296x166.jpg 296w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61730006-A-1264x712.jpg 1264w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61730006-A-632x356.jpg 632w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61730006-A-316x178.jpg 316w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61730006-A-400x225.jpg 400w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61730006-A-200x113.jpg 200w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61730006-A-100x56.jpg 100w, https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/61730006-A.jpg 1570w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">As a bio major on the Hill in the 1970s.<\/figcaption><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Since his retirement in 2016, his life list has continued to grow, through trips to places like Indonesia, Vietnam, the Philippines, and\u2014as chronicled in Williamson\u2019s <em>Outside<\/em> story\u2014Peru. <\/p>\n\n\n\n<p>Those expeditions aren\u2019t what most people would consider relaxing getaways. As Williamson notes: during the six days she spent with Kaestner, they logged more than 1,500 miles of driving (plus two flights) in search of 12 rare birds, often skipping meals and sleeping only a few hours a night.<\/p>\n\n\n\n<p>\u201cKaestner doesn\u2019t waste time,\u201d she observes, \u201cand age hasn\u2019t slowed him down.\u201d<\/p>\n\n\n\n<p><em>Top: Kaestner birding in Angola\u2019s <em>Tundavala Gap<\/em>. All images provided (unless indicated)<\/em>. <\/p>\n\n\n\n<p class=\"has-small-font-size\">Published July 26, 2023; updated March 15, 2024<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n","protected":false},"excerpt":{"rendered":"<p>Retired Foreign Service officer Peter Kaestner \u201975, BA \u201976, holds the world record for viewing the most species<\/p>\n","protected":false},"author":84,"featured_media":24219,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"alumni_hub_syml_posts":[23626,13216,4630],"footnotes":""},"categories":[229],"tags":[],"cornell_year_post":[],"post_folder":[],"class_list":["post-24214","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-alumni"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Edging Toward a \u2018Life List\u2019 of 10,000, Leading Birder Flies High - Cornellians | Cornell University<\/title>\n<meta name=\"description\" content=\"Retired Foreign Service officer Peter Kaestner \u201975, BA \u201976, holds the world record for viewing the most species\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/alumni.cornell.edu\/cornellians\/kaestner-birder\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Edging Toward a \u2018Life List\u2019 of 10,000, Leading Birder Flies High - Cornellians | Cornell University\" \/>\n<meta property=\"og:description\" content=\"Retired Foreign Service officer Peter Kaestner \u201975, BA \u201976, holds the world record for viewing the most species\" \/>\n<meta property=\"og:url\" content=\"https:\/\/alumni.cornell.edu\/cornellians\/kaestner-birder\/\" \/>\n<meta property=\"og:site_name\" content=\"Cornellians | Cornell University\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/Cornellians\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-15T13:55:33+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-03-15T13:57:28+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/alumni.cornell.edu\/cornellians\/wp-content\/uploads\/sites\/2\/2023\/07\/IMG_5802-A.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1600\" \/>\n\t<meta property=\"og:image:height\" content=\"900\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Lindsay Lennon\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@WeCornellians\" \/>\n<meta name=\"twitter:site\" content=\"@WeCornellians\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Lindsay Lennon\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/alumni.cornell.edu\\\/cornellians\\\/kaestner-birder\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/alumni.cornell.edu\\\/cornellians\\\/kaestner-birder\\\/\"},\"author\":{\"name\":\"Lindsay Lennon\",\"@id\":\"https:\\\/\\\/alumni.cornell.edu\\\/cornellians\\\/#\\\/schema\\\/person\\\/197023738d0d2902447bd7565fe13ad5\"},\"headline\":\"Edging Toward a \u2018Life List\u2019 of 10,000, Leading Birder Flies High\",\"datePublished\":\"2024-03-15T13:55:33+00:00\",\"dateModified\":\"2024-03-15T13:57:28+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/alumni.cornell.edu\\\/cornellians\\\/kaestner-birder\\\/\"},\"wordCount\":913,\"commentCount\":1,\"image\":{\"@id\":\"https:\\\/\\\/alumni.cornell.edu\\\/cornellians\\\/kaestner-birder\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/alumni.cornell.edu\\\/cornellians\\\/wp-content\\\/uploads\\\/sites\\\/2\\\/2023\\\/07\\\/IMG_5802-A.jpg\",\"articleSection\":[\"Alumni\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/alumni.cornell.edu\\\/cornellians\\\/kaestner-birder\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/alumni.cornell.edu\\\/cornellians\\\/kaestner-birder\\\/\",\"url\":\"https:\\\/\\\/alumni.cornell.edu\\\/cornellians\\\/kaestner-birder\\\/\",\"name\":\"Edging Toward a \u2018Life List\u2019 of 10,000, Leading Birder Flies High - 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