Provider: Japan Science and Technology Agency Database: J-STAGE Content:text/plain; charset="utf-8" TY - JOUR TI - A Proposal for Methods of Monitoring the Black-naped Tern and Roseate Tern TI - —Counting of the Nest Number and Assessing the Egg Laying Period Based on Estimated Age of Chick by Observation from Outside the Colony— AU - Mizutani,Akira AU - Kohno,Hiroyoshi JO - Journal of the Yamashina Institute for Ornithology VL - 40 IS - 2 SP - 125 EP - 138 PY - 2009 DO - 10.3312/jyio.40.125 ER -