5 : 無料・フリー素材/写真
5 / Dana L. Brown
| ライセンス | クリエイティブ・コモンズ 表示-継承 2.1 |
|---|---|
| 説明 | Heading to Marin IslandsEcology––West Marin Island, elevation 26 meters (85 ft) above the bay waters, supports the largest heron and egret rookery in the San Francisco Bay Area. Nesting species include great egrets, snowy egrets, great blue herons, and black-crowned night herons.East Marin Island, a former vacation retreat, now supports a variety of introduced and native plants and provides critical nesting material and rest sites for the nearby colony.The submerged tidelands support a variety of resident and migratory water birds such as surf scoter, black oystercatcher, diving ducks, and osprey. Refuge objectives are to protect migratory species, including the heron and egret nesting colony, protect and restore suitable habitat for the colony, and protect the tidal mud flats and unique island ecosystem. |
| 撮影日 | 2020-10-31 17:38:34 |
| 撮影者 | Dana L. Brown , Lucas Valley, USA |
| 撮影地 | San Rafael, California, United States 地図 |
| カメラ | iPhone 11 Pro , Apple |
| 露出 | 0.001 sec (1/1429) |
| 開放F値 | f/1.8 |
| 焦点距離 | 37 deg 57' 59.88" N |