报告

作者

日期

eBird记录 S283765099

地点

DuBay Dike and Wisconsin River Below The Dam
Portage, Wisconsin, United States
该地点产生的媒体文件 配图名录
地图
地图 坐标: 44.6642048, -89.6520337
年龄
未说明
性别
未说明
行为
飞行; 觅食或者进食
发声
鸣叫
回放
未说明

媒体文件注释

Bonapartes gulls flying around near the shore just below the dam catching fish and fighting.

观察细节

Estimate, counting by ones. After about 30 mins about 1/3 got up and headed south. Some were spending time around the mergansers that were diving on the far shore. At one point I watched a merganser with a fish in its mouth and a bonapartes gull was aggressive towards it. Almost riding on his back for a moment. 2025-11-26: Updated 320->380. Took a panoramic picture of the gulls on the water and went back later to get a better count estimate.

技术信息

录音机
Sony PCM-A10
话筒
Internal Mics (Wide Stereo positioning)
附件
Windjammer
原始文件大小
23.94 MB