| The researchers say that nestlings in at least half of the nests they studied were eaten, mainly by martens and weasels. |
| Mammals such as weasels, foxes, stoats and especially roe deer can wander safely without the risk of being killed by traffic. |
| Many small creatures such as snakes, lizards, weasels and stoats would also live in the hills, and bats would have lived in cliff caves. |
| Preyed upon by hawks, foxes, and weasels, they may also fall victim to domestic cats. |
| Of these animals, only weasels, otters and mink remain widespread, and the weasel is the only one that is still abundant. |
| At 36 days young weasels are weaned and can eat food brought back to the nest by the mother. |
