The RSPB said it had also received reports of short-eared owls and barn owls found dead after cold weather hampered their ability to hunt.

BBC: Stone curlews died underweight because of 'cold spring'

After our fresh lunch of trout, roasted onions and pineapple, we took a short hike, using hip waders to walk into the cold stream that emptied the lake.

BBC: Kluane, Canada (Credit: Parks Canada/Fritz Mueller)