{"id":754,"date":"2022-06-06T00:00:00","date_gmt":"2022-06-06T00:00:00","guid":{"rendered":"http:\/\/weebly-import-post-99"},"modified":"2026-06-17T01:43:22","modified_gmt":"2026-06-17T01:43:22","slug":"perrys-journey-episode-10-homecoming","status":"publish","type":"wingbeat","link":"https:\/\/sfbbo-test.twomoons.systems\/staging\/1924\/wingbeat\/perrys-journey-episode-10-homecoming\/","title":{"rendered":"Perry&#8217;s Journey Episode 10: Homecoming"},"content":{"rendered":"<div class=\"paragraph\"><strong>By Science Outreach Intern Katrina McCollough<\/strong><\/div> <div><div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\"><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><figure class=\"wp-block-image\"><img data-recalc-dims=\"1\" decoding=\"async\" loading=\"lazy\" alt=\"Picture\" src=\"https:\/\/i0.wp.com\/sfbbo-test.twomoons.systems\/staging\/1924\/wp-content\/uploads\/weebly-migration\/instagram10_orig.jpg?ssl=1\"\/><\/figure><\/div><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><p class=\"wp-block-paragraph\"><span><span><em>Home sweet summer home. What was all this for? This comic, this journey? Why do birds like Perry fly thousands of miles, and why do some do it twice a year? How did they know where to go? And most importantly, why are migrating bird populations in decline?<\/em> <\/span><\/span><br\/><br\/><em><strong>Click on &#8220;Read More&#8221; below\u00a0<\/strong><strong>to check out Episode Ten<\/strong>\u00a0and learn about Perry&#8217;s homecoming as he completes his migration journey!\u00a0<strong><a href=\"\/staging\/1924\/perrys-journey-episode-9-all-wound-up\/\" target=\"_blank\">Click here to read Episode 9<\/a>.\u00a0\u00a0<\/strong><\/em><\/p><\/div><\/div><\/div>\n\n<!--more-->\n\n  <div><div class=\"wsite-image wsite-image-border-none\" style=\"padding-top:10px;padding-bottom:10px;margin-left:0;margin-right:0;text-align:center\"> <a> <img data-recalc-dims=\"1\" decoding=\"async\" loading=\"lazy\" alt=\"Picture\" src=\"https:\/\/i0.wp.com\/sfbbo-test.twomoons.systems\/staging\/1924\/wp-content\/uploads\/weebly-migration\/10-1_orig.jpg?ssl=1\" style=\"width:auto;max-width:100%\"\/> <\/a>  <\/div><\/div> <div> <hr class=\"styled-hr\" style=\"width:100%\"\/> <\/div> <div class=\"paragraph\">The word \u2018migration\u2019 describes periodic, large-scale movements of populations of animals. According to <a href=\"https:\/\/www.allaboutbirds.org\/news\/the-evolution-of-bird-migration\/\" target=\"_blank\">AllAboutBirds<\/a>, \u201cBirds migrate to move from areas of low or decreasing resources to areas of high or increasing resources.\u201d The resources they are interested in are food and nesting locations. Not all birds migrate as far as Perry, some only migrate short distances like going up or down a mountain, others migrate a couple hundred miles. <a href=\"https:\/\/www.allaboutbirds.org\/news\/the-basics-how-why-and-where-of-bird-migration\/\" target=\"_blank\">For long-distance migrants<\/a> like Perry it\u2019s common for them to move from their breeding ranges in the US and Canada, all the way down to their wintering homes in Central or South America.<br\/><br\/>\u200bOne of the birds Perry was modeled after was the <a href=\"http:\/\/www.sci-news.com\/biology\/blackpoll-warbler-migration-07008.html\" target=\"_blank\">Blackpoll Warblers<\/a> which migrate up to <span style=\"font-weight:700\">12,400 miles <\/span>roundtrip each year, isn\u2019t that incredible?\u00a0And did you know that in preparation for winter migration, birds build fat reserves up to 40-60% of their body weight? This is their <a href=\"https:\/\/www.ajc.com\/life\/migration-means-fat-times-for-birds\/G4FH3Z6JQZGKJPJOMLFFZXFRDU\/\" target=\"_blank\">\u2018energy storage\u2019<\/a> for the long flight. Nonmigratory birds, on average, maintain a \u201cfat load\u201d of 3-5%, that\u2019s a big difference! And they load up only two to three weeks before heading south. (photo by Nick Fewings)<\/div> <div><div class=\"wsite-image wsite-image-border-none\" style=\"padding-top:10px;padding-bottom:10px;margin-left:0;margin-right:0;text-align:center\"> <a> <img data-recalc-dims=\"1\" decoding=\"async\" loading=\"lazy\" alt=\"Picture\" src=\"https:\/\/i0.wp.com\/sfbbo-test.twomoons.systems\/staging\/1924\/wp-content\/uploads\/weebly-migration\/1_orig.png?ssl=1\" style=\"width:auto;max-width:100%\"\/> <\/a>  <\/div><\/div> <div class=\"paragraph\"><span>Perry is unique (and somewhat inaccurate) in that he did this migration alone, most birds are <span style=\"font-weight:700\">gregarious<\/span>, meaning they enjoy company during migration (even ones that are usually solitary). Most people are familiar with the \u2018flying V\u2019s\u2019 of geese, but smaller birds tend to flock in even larger numbers when they migrate. Have you ever seen a giant flock of birds overhead, making beautiful shapes in the sky? This is called a <span style=\"font-weight:700\">murmuration <\/span>and it is one of the most awe-inspiring events you can experience. Check out this <a href=\"https:\/\/paddling.com\/learn\/a-starling-surprise\" target=\"_blank\">amazing video<\/a> of kayakers catching a murmuration of Starlings above a lake.<\/span><br\/><br\/>\u200b<span><span>We know that the <\/span><span style=\"font-weight:700\">Blackpoll Warblers<\/span><span> are incredible little migrators, but the bird world is full of many impressive fliers. <\/span><span style=\"font-weight:700\"><a href=\"https:\/\/www.kaytee.com\/learn-care\/wild-bird\/10-facts-about-migrating-birds\" target=\"_blank\">Hummingbirds<\/a><\/span><span> are the smallest migrating bird, at just an eighth of an ounce they can travel up to 30 miles an hour when they migrate across the Gulf of Mexico, a 600-mile journey. The <\/span><span style=\"font-weight:700\"><a href=\"https:\/\/earthsky.org\/earth\/which-bird-migrates-the-farthest\/#:~:text=The%20bar%2Dtailed%20godwit%20holds,then%20there%27s%20the%20wandering%20albatross.\" target=\"_blank\">Bar-tailed Godwit<\/a><\/span><span> holds the record for the longest nonstop flight, 6,800 miles from Alaska to New Zealand. The <\/span><span style=\"font-weight:700\">Wandering Albatross<\/span><span> doesn\u2019t technically count as a migrating bird simply because it is almost always on the move (wandering, get it?), circling the Southern Hemisphere\u2019s oceans. It can fly up to 18,000 miles between breedings. America\u2019s <\/span><span style=\"font-weight:700\">Blue Grouse<\/span><span> has the shortest migration, checking in at just under 1,000 feet, and the Bar-headed Goose is the highest-flying bird, crossing the Himalayas and reaching altitudes up to 23,000 feet. Even some species of <\/span><span style=\"font-weight:700\"><a href=\"https:\/\/www.birdlife.org\/news\/2018\/06\/27\/migration-marathons-7-unbelievable-bird-journeys\/\" target=\"_blank\">penguins<\/a><\/span><span> migrate proving you don\u2019t always need to fly to get where you need to go. Is anyone feeling a little lazy after reading about these little guys? (photo by David Cousins)<\/span><\/span><\/div> <div><div class=\"wsite-image wsite-image-border-none\" style=\"padding-top:10px;padding-bottom:10px;margin-left:0;margin-right:0;text-align:center\"> <a> <img data-recalc-dims=\"1\" decoding=\"async\" loading=\"lazy\" alt=\"Picture\" src=\"https:\/\/i0.wp.com\/sfbbo-test.twomoons.systems\/staging\/1924\/wp-content\/uploads\/weebly-migration\/mur_orig.png?ssl=1\" style=\"width:auto;max-width:100%\"\/> <\/a>  <\/div><\/div> <div> <hr class=\"styled-hr\" style=\"width:100%\"\/> <\/div> <div class=\"paragraph\"><span><em><strong><span style=\"font-weight:700\">How do birds navigate during migration?<\/span><\/strong><\/em><span><em><strong>\u00a0<\/strong><\/em><\/span><\/span><br\/><br\/><span><span>Full disclosure! Scientists don\u2019t know 100% of everything about birds&#8217; amazing navigational skills, but they\u2019ve figured a few things out. Birds use several of their senses when migrating. They can get compass information from the sun and stars by sensing the Earth\u2019s magnetic field, and they get information from the position of the setting sun and other various landmarks that they see. There\u2019s also evidence that some birds, including homing pigeons, use their sense of smell. A lot of waterfowl and cranes follow pathways related to important stopover locations, places they can eat and rest.<\/span><\/span><\/div> <div> <hr class=\"styled-hr\" style=\"width:100%\"\/> <\/div> <div class=\"paragraph\"><span><span style=\"font-weight:700\"><em>What\u2019s happening to migrating bird populations?<\/em><\/span><\/span><br\/><br\/><span>AllAboutBirds sums up the issue well, \u201cTaking a journey that can stretch to a round-trip distance of several thousand miles is a dangerous and arduous undertaking. It is an effort that tests both the birds\u2019 physical and mental capabilities. The physical stress of the trip, lack of adequate food supplies along the way, bad weather, and increased exposure to predators all add to the hazards of the journey. In recent decades long-distance migrants have been facing a growing threat from communication towers and tall buildings. Many species are attracted to the lights of tall buildings and millions are killed each year in collisions with the structures.\u201d (Graph from <a href=\"https:\/\/www.nytimes.com\/2020\/01\/09\/learning\/whats-going-on-in-this-graph-north-american-bird-populations.html\" target=\"_blank\">New York Times<\/a>)<\/span><\/div> <div><div class=\"wsite-image wsite-image-border-none\" style=\"padding-top:10px;padding-bottom:10px;margin-left:0;margin-right:0;text-align:center\"> <a> <img data-recalc-dims=\"1\" decoding=\"async\" loading=\"lazy\" alt=\"Picture\" src=\"https:\/\/i0.wp.com\/sfbbo-test.twomoons.systems\/staging\/1924\/wp-content\/uploads\/weebly-migration\/map_orig.png?ssl=1\" style=\"width:auto;max-width:100%\"\/> <\/a>  <\/div><\/div> <div class=\"paragraph\"><span><span>One major cause of the decline in migratory populations is <\/span><span style=\"font-weight:700\">climate change<\/span><span> caused by global warming. Climate change leads to changes and shifts in habitats, which can cause the redistribution of birds, and in some cases a nearly complete loss of their habitats. Flying long distances involves crossing many borders between countries with varying environmental politics, legislation and conservation measures. It\u2019s really important to have international cooperation among governments, NGOs and other stakeholders share knowledge and coordinate conservation efforts.<br\/><br\/>Did you notice when Perry crossed the border into Mexico, then the US, then Canada? Neither did he! We humans have made these boundaries but the birds aren\u2019t a part of that. It\u2019s up to us to cooperate across state and international lines to protect the birds that migrate through our areas. Support international organizations that support migration corridors, migration hotspots, and any other bird conservation efforts. Every person can make a difference, whether in your community or in the world.<\/span><\/span><br\/><br\/><span>For more information on national projects that are focused on conservation measures you can check out the <a href=\"https:\/\/www.fws.gov\/program\/migratory-birds#:~:text=The%20USFWS%20has%20been%20a,emerging%20conservation%20and%20hunting%20issues.\" target=\"_blank\">US Fish and Wildlife Service\u2019s page on Conservation Measures<\/a><\/span><br\/><\/div> <div> <hr class=\"styled-hr\" style=\"width:100%\"\/> <\/div> <div class=\"paragraph\"><em><strong>The Mission of Perry&#8217;s Journey &#8211; A Message from the Illustrator<\/strong><\/em><br\/><br\/><span>It\u2019s important we understand that just because birds can fly over it all, doesn\u2019t mean they aren\u2019t affected by what\u2019s going on down here on the ground. The population of North American birds has dropped by nearly 30% since the 1970s, that is\u00a0<\/span><strong><a href=\"https:\/\/www.science.org\/content\/article\/three-billion-north-american-birds-have-vanished-1970-surveys-show#:~:text=Since%20the%201970s%2C%20the%20continent,this%20week%20online%20in%20Science.\" target=\"_blank\">a total of almost 3 billion birds. Gone.<\/a><\/strong><br\/><br\/><span>Birds are incredibly important to the balance of our ecosystems: they are essential as pollinators and for seed dispersal, particularly for native plants, and they feed on and help control a variety of critters we consider pests like insects and rodents. Bird studies teach us about climate and the environment, and the birds themselves are key indicators of environmental change. And, most simply, birds are beautiful, and they provide us with music and joy.<\/span><br\/><br\/><strong>The protagonist of this story, Perry, is doing his part as a bird<\/strong><span>, migrating to his northern breeding location to hopefully pass on his little brown bird genes. It\u2019s all he can do. Perry\u2019s Journey illustrates the important journey of birds like him across the globe, who are doing their parts to help.<\/span><br\/><br\/><span>Migrating birds are disproportionately affected because they need not just one habitat, but multiple habitats that can serve as stopping points along their journeys. We call these\u00a0<\/span><strong>migration corridors<\/strong><span>\u00a0and it\u2019s important that they are protected: for the birds\u2019 sakes as well as our own. Birds like Perry can\u2019t control what happens on the ground, or in the water and air,\u00a0<\/span><strong>but we can<\/strong><span>. During Perry\u2019s journey over the couse of ten posts, we will go into some of the main issues facing not just migrating birds, but all birds, and what you can do to help.\u00a0<\/span><em><strong>To support SFBBO&#8217;s work to conserve birds and their habitats through science and outreach, please\u00a0<a href=\"https:\/\/www.flipcause.com\/secure\/cause_pdetails\/MTUxMjgy\" target=\"_blank\">make a donation to our Spring Appeal!<\/a><\/strong><\/em><\/div> <div><div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\"><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><figure class=\"wp-block-image\"><img data-recalc-dims=\"1\" decoding=\"async\" loading=\"lazy\" alt=\"Picture\" src=\"https:\/\/i0.wp.com\/sfbbo-test.twomoons.systems\/staging\/1924\/wp-content\/uploads\/weebly-migration\/katrina-photo-orig_orig.png?ssl=1\"\/><\/figure><\/div><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><p class=\"wp-block-paragraph\"><em>Katrina McCollough is from the Bay Area and is a science outreach intern with SFBBO and the creator of Perry&#8217;s Journey. Her interest in birds stemmed from an internship she had at SFBBO&#8217;s\u00a0<a href=\"\/staging\/1924\/ccfs\/\">Coyote Creek Field Station<\/a>\u00a0where she got firsthand experience working with the banders and volunteers at the station. That was the first time she ever held or released a bird, and she\u2019s fallen in love with them since, and her favorite bird is the Bushtit. Previously, her interests were directed toward the ground, instead of the sky, hunting for mushrooms or insects. Katrina is currently a college student with a major in Biological Sciences, and she hopes to continue her schooling in mycology and bioremediation.\u00a0<\/em>\u200b<\/p><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>By Science Outreach Intern Katrina McCollough<\/p>\n","protected":false},"featured_media":1230,"template":"","meta":{"_acf_changed":false,"nf_dc_page":""},"class_list":["post-754","wingbeat","type-wingbeat","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Perry&#039;s Journey Episode 10: Homecoming - San Fransisco Bay Bird Observatory<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sfbbo-test.twomoons.systems\/staging\/1924\/wingbeat\/perrys-journey-episode-10-homecoming\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Perry&#039;s Journey Episode 10: Homecoming - 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