{"id":21603,"date":"2014-01-23T07:50:25","date_gmt":"2014-01-23T14:50:25","guid":{"rendered":"http:\/\/www.featheredphotography.com\/blog\/?p=21603"},"modified":"2014-01-23T12:31:51","modified_gmt":"2014-01-23T19:31:51","slug":"farmington-bay-bald-eagles-and-the-2014-carp-kill","status":"publish","type":"post","link":"https:\/\/featheredphotography.com\/blog\/2014\/01\/23\/farmington-bay-bald-eagles-and-the-2014-carp-kill\/","title":{"rendered":"Farmington Bay, Bald Eagles And The 2014 Carp Kill"},"content":{"rendered":"<p>For years managers at Farmington Bay WMA have killed carp as a management tool.\u00a0 The dead fish bring in\u00a0hundreds of\u00a0Bald Eagles\u00a0but this year, because of the West Nile Virus outbreak in the eagle population, managers had to decide whether or not to proceed with the fish kill.\u00a0 That decision has been made.<\/p>\n<p>First a little background.\u00a0\u00a0\u00a0Because of the aggressive way carp root in the mud of the wetlands they\u00a0cause significant\u00a0damage to the emergent vegetation required by waterfowl for nesting and cover.\u00a0 Managers use rotenone to control the carp population.\u00a0 Rotenone is a natural substance that is not a poison in the classic sense &#8211; it simply prevents oxygen from moving\u00a0through the gills of the fish so they die of asphyxiation.\u00a0 The rotenone is expensive and it\u00a0dissipates quickly so it is used during winter when low water\u00a0temperatures make its effect last longer.<\/p>\n<p>Up to 1250 (sometimes more)\u00a0Bald Eagles overwinter in Utah and\u00a0hundreds of them\u00a0are typically drawn\u00a0to\u00a0Farmington Bay\u00a0in late January and February\u00a0for the fish smorgasbord.\u00a0 This mass congregation provides a real treat for birders, nature lovers and photographers.\u00a0\u00a0 And eagles aren&#8217;t the only\u00a0avian participants in the feeding frenzy\u00a0&#8211; thousands of\u00a0 gulls of many species (some unusual for our area)\u00a0also join in the feast.\u00a0 These\u00a0gulls\u00a0are\u00a0a big draw for birders.<\/p>\n<p>These photos were all taken at Farmington soon after a carp kill and should give you a feeling for what it&#8217;s often\u00a0like there in late winter.<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-9890-ron-dudley.jpg\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"21605\" data-permalink=\"https:\/\/featheredphotography.com\/blog\/2014\/01\/23\/farmington-bay-bald-eagles-and-the-2014-carp-kill\/bald-eagle-9890-ron-dudley\/\" data-orig-file=\"https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-9890-ron-dudley.jpg\" data-orig-size=\"900,643\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;8&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;Canon EOS 40D&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1233311076&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;700&quot;,&quot;iso&quot;:&quot;500&quot;,&quot;shutter_speed&quot;:&quot;0.0005&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"bald eagle 9890 ron dudley\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-9890-ron-dudley.jpg\" class=\"aligncenter size-full wp-image-21605\" alt=\"bald eagle 9890 ron dudley\" src=\"https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-9890-ron-dudley.jpg\" width=\"900\" height=\"643\" srcset=\"https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-9890-ron-dudley.jpg 900w, https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-9890-ron-dudley-300x214.jpg 300w, https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-9890-ron-dudley-150x107.jpg 150w, https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-9890-ron-dudley-400x285.jpg 400w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/a><\/p>\n<p>This immature Bald Eagle had eaten its fill but instinctively guarded its fish from other birds by carrying it from place to place in the shallow water.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-9962-ron-dudley.jpg\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"21607\" data-permalink=\"https:\/\/featheredphotography.com\/blog\/2014\/01\/23\/farmington-bay-bald-eagles-and-the-2014-carp-kill\/bald-eagle-9962-ron-dudley\/\" data-orig-file=\"https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-9962-ron-dudley.jpg\" data-orig-size=\"900,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;11&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;Canon EOS 40D&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1233311522&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;700&quot;,&quot;iso&quot;:&quot;500&quot;,&quot;shutter_speed&quot;:&quot;0.001&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"bald eagle 9962 ron dudley\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-9962-ron-dudley.jpg\" class=\"aligncenter size-full wp-image-21607\" alt=\"bald eagle 9962 ron dudley\" src=\"https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-9962-ron-dudley.jpg\" width=\"900\" height=\"600\" srcset=\"https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-9962-ron-dudley.jpg 900w, https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-9962-ron-dudley-300x200.jpg 300w, https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-9962-ron-dudley-150x100.jpg 150w, https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-9962-ron-dudley-400x266.jpg 400w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/a><\/p>\n<p>Here, two immature eagles of different ages (on the left) crowd around an adult and pick up tidbits it leaves behind.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-9942-ron-dudley.jpg\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"21606\" data-permalink=\"https:\/\/featheredphotography.com\/blog\/2014\/01\/23\/farmington-bay-bald-eagles-and-the-2014-carp-kill\/bald-eagle-9942-ron-dudley\/\" data-orig-file=\"https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-9942-ron-dudley.jpg\" data-orig-size=\"900,610\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;11&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;Canon EOS 40D&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1233311442&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;700&quot;,&quot;iso&quot;:&quot;500&quot;,&quot;shutter_speed&quot;:&quot;0.001&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"bald eagle 9942 ron dudley\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-9942-ron-dudley.jpg\" class=\"aligncenter size-full wp-image-21606\" alt=\"bald eagle 9942 ron dudley\" src=\"https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-9942-ron-dudley.jpg\" width=\"900\" height=\"610\" srcset=\"https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-9942-ron-dudley.jpg 900w, https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-9942-ron-dudley-300x203.jpg 300w, https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-9942-ron-dudley-150x101.jpg 150w, https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-9942-ron-dudley-400x271.jpg 400w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/a><\/p>\n<p>This young bird was really pushing its luck as it tried to snatch away some of the fish.\u00a0 The adult threatened it several times but eventually the juvenile was rewarded for its efforts with some fish skin.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-2562-ron-dudley.jpg\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"21604\" data-permalink=\"https:\/\/featheredphotography.com\/blog\/2014\/01\/23\/farmington-bay-bald-eagles-and-the-2014-carp-kill\/bald-eagle-2562-ron-dudley\/\" data-orig-file=\"https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-2562-ron-dudley.jpg\" data-orig-size=\"900,608\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;8&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;Canon EOS 40D&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1235040228&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;500&quot;,&quot;iso&quot;:&quot;500&quot;,&quot;shutter_speed&quot;:&quot;0.0004&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"bald eagle 2562 ron dudley\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-2562-ron-dudley.jpg\" class=\"aligncenter size-full wp-image-21604\" alt=\"bald eagle 2562 ron dudley\" src=\"https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-2562-ron-dudley.jpg\" width=\"900\" height=\"608\" srcset=\"https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-2562-ron-dudley.jpg 900w, https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-2562-ron-dudley-300x202.jpg 300w, https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-2562-ron-dudley-150x101.jpg 150w, https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-2562-ron-dudley-400x270.jpg 400w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/a><\/p>\n<p>Serious fights over carp are fairly common so there&#8217;s lots of interesting action to be observed and photographed.\u00a0 Here you can see a carp below the\u00a0two fighting adults and another one being guarded by the eagle on the left.\u00a0 Gulls are ever-present, waiting for an opportunity to snatch away any morsels they can.<\/p>\n<p>&nbsp;<\/p>\n<p>But this year things will be dramatically different at Farmington Bay as managers have made their decision and carp will not be killed in northern Utah (including Farmington) this winter.\u00a0 Approximately 60 Bald Eagles are confirmed dead from West Nile Virus\u00a0and others are still in rehabilitation.\u00a0 It&#8217;s very likely that there are more dead\u00a0eagles that have not been found.\u00a0 Most dead eagles have been found by hunters\u00a0but\u00a0duck hunting season has recently come to an end so\u00a0it&#8217;s probable that\u00a0few if any more will be located.<\/p>\n<p>The effects of West Nile Virus in eagle populations are not well understood but since it&#8217;s known that the virus, whose typical vector is mosquitoes, can also be spread through feces and saliva it was deemed best to not take a chance by artificially congregating large numbers of eagles at Farmington.\u00a0\u00a0 This will be a huge disappointment to many but the chance just wasn&#8217;t worth taking.<\/p>\n<p>The rationale for the decision is complex (and even somewhat controversial) and beyond the scope of this blog post but if you&#8217;re interested in more details I include this <a href=\"http:\/\/www.nwhc.usgs.gov\/publications\/wildlife_health_bulletins\/WHB_2014-02_Utah_Bald_Eagles.pdf\" target=\"_blank\">link<\/a> to the USGS press release on the subject.<\/p>\n<p>Carp\u00a0were\u00a0deliberately introduced into northern Utah in the late 1800&#8217;s and they wreak havoc in many of our waterways and lakes.\u00a0 They&#8217;re particularly troublesome in Utah Lake and the state is in the process of removing 5 million pounds of them annually in an effort to have them under control by 2017.\u00a0 More on the Utah Lake effort\u00a0<a href=\"http:\/\/www.ksl.com\/?sid=25685910\">here<\/a> if you&#8217;re interested.<\/p>\n<p>This decision will likely be old news to\u00a0some of my\u00a0blog followers\u00a0but since\u00a0many birders and photographers travel from out of state to witness this spectacle I thought a report on the decision was appropriate.<\/p>\n<p>Ron<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>For years managers at Farmington Bay WMA have killed carp as a management tool.  The dead fish bring in hundreds of Bald Eagles but this year, because of the West Nile Virus outbreak in the eagle population, managers had to decide whether or not to proceed with the fish kill.  That decision has been made.<\/p>\n<p> <a class=\"continue-reading-link\" href=\"https:\/\/featheredphotography.com\/blog\/2014\/01\/23\/farmington-bay-bald-eagles-and-the-2014-carp-kill\/\"><span>Continue reading<\/span><i class=\"crycon-right-dir\"><\/i><\/a> <\/p>\n","protected":false},"author":2,"featured_media":21604,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[355,334,8,392],"tags":[43,74,397,169,400,268,311,1810],"class_list":["post-21603","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bald-eagles","category-birds","category-ecology-and-environment","category-feeding-bird-behaviors","tag-bald-eagle","tag-carp","tag-farmington-bay","tag-gulls","tag-haliaeetus-leucocephalus","tag-rotenone","tag-utah-2","tag-west-nile-virus"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/featheredphotography.com\/blog\/wp-content\/uploads\/2014\/01\/bald-eagle-2562-ron-dudley.jpg","jetpack_shortlink":"https:\/\/wp.me\/p1zzJh-5Cr","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/featheredphotography.com\/blog\/wp-json\/wp\/v2\/posts\/21603","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/featheredphotography.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/featheredphotography.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/featheredphotography.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/featheredphotography.com\/blog\/wp-json\/wp\/v2\/comments?post=21603"}],"version-history":[{"count":0,"href":"https:\/\/featheredphotography.com\/blog\/wp-json\/wp\/v2\/posts\/21603\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/featheredphotography.com\/blog\/wp-json\/wp\/v2\/media\/21604"}],"wp:attachment":[{"href":"https:\/\/featheredphotography.com\/blog\/wp-json\/wp\/v2\/media?parent=21603"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/featheredphotography.com\/blog\/wp-json\/wp\/v2\/categories?post=21603"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/featheredphotography.com\/blog\/wp-json\/wp\/v2\/tags?post=21603"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}