ML163290

媒体文件注释

Recordist's Notes: "Female Spectacled Eider (w/ silent brood) growling at approach of human observers. 7 primary growls in first 10 sec; a secondary growl at 0:13. Secondary growls seem different, less harsh (also perhaps averaging longer in duration, higher in frequency, and slightly more complex in gross structure). Subsequent secondary growls at much lower volume.".

额外物种

• Common Gull Larus canus
• Red-necked Phalarope Phalaropus lobatus
• Sandhill Crane Antigone canadensis