{"id":29,"date":"1970-01-01T00:00:00","date_gmt":"1970-01-01T00:00:00","guid":{"rendered":"http:\/\/weebly-import-page-20"},"modified":"2026-07-01T17:45:12","modified_gmt":"2026-07-01T17:45:12","slug":"ccfsaskascientist","status":"publish","type":"page","link":"https:\/\/sfbbo-test.twomoons.systems\/staging\/1924\/ccfsaskascientist\/","title":{"rendered":"Ask a Scientist &#8211; CCFS &#8211; San Francisco Bay Bird Observatory"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center\">Ask a Scientist<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">In March 2020, we started a social media campaign called&nbsp;<strong>Ask A Scientist,&nbsp;<\/strong>where we covered a different topic each week and invited people to ask questions which we answered ever Friday. One of our topics was bird banding with former Landbird Program Director Josh Scullen.<\/p>\n\n\n\n<hr class=\"is-style-wide wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><span>Did you know that SFBBO runs one of the few year-round bird banding stations in the US? We band about 2,500 birds per year with unique ID tags that identify individuals when we recapture them. We can use this data to look at population trends and life history patterns of resident and migratory species over time. Some of our tagged birds have lived 11 years!<\/span><br><br><span>SFBBO uses banding data from the Coyote Creek Field Station to track population trends over time. For a 20-year period between 1999 and 2018, bird populations on average have been declining. <br><br>This graph (below) shows two population groups: resident species like the Song Sparrow and Common Yellowthroat, and neotropical migrant species like the Yellow Warbler and Wilson&#8217;s Warbler. <br><br>\u200bBoth populations groups are declining at similar rates, despite one group (residents) staying in the Bay Area year-round, and the other group (neotropical migrants) traveling hundreds of miles to winter in Central and South America.<\/span><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image\"><img data-recalc-dims=\"1\" decoding=\"async\" loading=\"lazy\" src=\"https:\/\/i0.wp.com\/sfbbo-test.twomoons.systems\/staging\/1924\/wp-content\/uploads\/weebly-migration\/ccfs2_orig.png?ssl=1\" alt=\"Picture\"\/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"is-style-wide wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wsite-image wsite-image-border-none\" style=\"padding-top:10px;padding-bottom:10px;margin-left:0;margin-right:0;text-align:center\">\n<a>\n<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\/tues1-ccfs-capture-trends-1999-2018-orig_orig.png?ssl=1\" style=\"width:auto;max-width:100%\">\n<\/a>\n\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>In March 2020, we started a social media campaign called\u00a0 Ask A Scientist,\u00a0 where we covered a different topic each week and invited people to ask questions which we answered ever Friday. One of&#8230;<\/p>\n","protected":false},"author":1,"featured_media":1203,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"nf_dc_page":"","footnotes":""},"class_list":["post-29","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":{"title":"BIRD BANDING","subtitle":"","hero_focal_x":50,"hero_focal_y":50},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ask a Scientist - CCFS - San Francisco Bay Bird Observatory - 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\/ccfsaskascientist\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ask a Scientist - CCFS - San Francisco Bay Bird Observatory - San Fransisco Bay Bird Observatory\" \/>\n<meta property=\"og:description\" content=\"In March 2020, we started a social media campaign called\u00a0 Ask A Scientist,\u00a0 where we covered a different topic each week and invited people to ask questions which we answered ever Friday. 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