31![Date Observation Over-wintering robins Keep a tally and record the dates of all your winter sightings. First male robin Date Observation Over-wintering robins Keep a tally and record the dates of all your winter sightings. First male robin](https://www.pdfsearch.io/img/1bbf23eb24bfe43cf325e0940c145b74.jpg) | Add to Reading ListSource URL: www.learner.orgLanguage: English - Date: 2013-06-27 05:01:06
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32![YELL 530 Revised[removed]Yellowstone National Park Rare Bird Observation Form Use this form for species with a + next to their name on the Yellowstone National Park bird checklist or any species not on YELL 530 Revised[removed]Yellowstone National Park Rare Bird Observation Form Use this form for species with a + next to their name on the Yellowstone National Park bird checklist or any species not on](https://www.pdfsearch.io/img/cdda816909edbf79dccc22ed35adb361.jpg) | Add to Reading ListSource URL: www.nps.govLanguage: English - Date: 2014-05-05 14:30:16
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33![For Official Use Only YELL 530 Revised[removed]BIRD OBSERVATION FORM For Official Use Only YELL 530 Revised[removed]BIRD OBSERVATION FORM](https://www.pdfsearch.io/img/ef9c523c098a328e844e02c4c408c967.jpg) | Add to Reading ListSource URL: www.greateryellowstonescience.orgLanguage: English - Date: 2010-07-24 16:26:47
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34![USGS Patuxent Wildlife Research Center Bird Banding Laboratory[removed]Beech Forest Road Laurel, MD[removed]MTAB 92: MEMO TO ALL BANDERS NOVEMBER 2007 USGS Patuxent Wildlife Research Center Bird Banding Laboratory[removed]Beech Forest Road Laurel, MD[removed]MTAB 92: MEMO TO ALL BANDERS NOVEMBER 2007](https://www.pdfsearch.io/img/c78b46134d19ce48d98d593c89e27f71.jpg) | Add to Reading ListSource URL: www.pwrc.usgs.govLanguage: English - Date: 2007-11-01 12:38:38
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35![St. Helens / Oregon / Geography of the United States / Geography of North America / United States / Mount St. Helens / Charlene / Washington St. Helens / Oregon / Geography of the United States / Geography of North America / United States / Mount St. Helens / Charlene / Washington](/pdf-icon.png) | Add to Reading ListSource URL: research.vancouver.wsu.eduLanguage: English - Date: 2012-07-20 16:17:53
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36![Mealworm Ranch An experiment in scientific observation You have probably heard about caterpillars turning into butterflies or tadpoles turning into frogs. You may have even heard about frogs turning into princes, but th Mealworm Ranch An experiment in scientific observation You have probably heard about caterpillars turning into butterflies or tadpoles turning into frogs. You may have even heard about frogs turning into princes, but th](https://www.pdfsearch.io/img/035865361ca9402f899e92549e676deb.jpg) | Add to Reading ListSource URL: education.usgs.govLanguage: English - Date: 2011-09-29 18:28:00
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37![Social.Water—a Tool for Harnessing the Power of Crowdsourcing to Involve Citizen Scientists in Hydrologic Data Acquisition Michael N. Fienen [removed] Social.Water—a Tool for Harnessing the Power of Crowdsourcing to Involve Citizen Scientists in Hydrologic Data Acquisition Michael N. Fienen [removed]](https://www.pdfsearch.io/img/930e72d129063f976d4ebe2e206e90ee.jpg) | Add to Reading ListSource URL: acwi.govLanguage: English - Date: 2012-10-03 13:39:03
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38![GLACIER NATIONAL PARK LOON OBSERVATION FORM Lake Name _____________________________ Observers Address GLACIER NATIONAL PARK LOON OBSERVATION FORM Lake Name _____________________________ Observers Address](https://www.pdfsearch.io/img/48767a8a175f9524d2fa991a1a8597d5.jpg) | Add to Reading ListSource URL: www.nps.govLanguage: English - Date: 2011-06-16 12:18:46
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39![Cordell Bank National Marine Sanctuaries Transcribed Video from Education Curriculum: Bird and Marine Mammal Observation Carol Keiper (black hat): OK, I’ve been the marine mammal observer on these trips and one of my m Cordell Bank National Marine Sanctuaries Transcribed Video from Education Curriculum: Bird and Marine Mammal Observation Carol Keiper (black hat): OK, I’ve been the marine mammal observer on these trips and one of my m](https://www.pdfsearch.io/img/962709915374b2bfec7b2c3bf4f0b412.jpg) | Add to Reading ListSource URL: cordellbank.noaa.govLanguage: English - Date: 2011-10-13 15:19:11
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40![A Field Book Project Activity: Using Photographs in Scientific Observation Objectives: Students will learn about how ornithologists use photographs to study characteristics of bird development, how to recognize and compa A Field Book Project Activity: Using Photographs in Scientific Observation Objectives: Students will learn about how ornithologists use photographs to study characteristics of bird development, how to recognize and compa](https://www.pdfsearch.io/img/9b8a4b7e9927971916696e5e7851dd2d.jpg) | Add to Reading ListSource URL: www.mnh.si.eduLanguage: English - Date: 2013-11-12 13:19:37
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