Protected hen harriers are vanishing under suspicious circumstances

A study that tracked 58 hen harriers over a decade found that most of the birds disappeared without a trace – and this was more likely to happen on grouse moors Source: https://www.newscientist.com/article/2197048-protected-hen-harriers-are-vanishing-under-suspicious-circumstances/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home