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Long-tailed Weasel with Meadow Vole


Yesterday morning, 20 November 2014, saw me out on a bird walk in the morning. The weather has been reasonably mild recently, with sunshine and blue skies. The only bird photo I got was a male Hairy Woodpecker, which I’m posting today, partly for comparison with the Downy Woodpecker photo I posted yesterday.
After the walk, I paid another visit to where the Long-tailed Weasel can sometimes be seen. Various friends were there, too, and we were treated to a few good photo opps, including with some of the eight or so Meadow Voles it caught while we were there. It is an amazing hunter, moving so rapidly over the uneven, snowy ground and tangles of dead plants and fallen logs. I took a number of closer shots, so thought I would leave this more distant photo uncropped.
"Counting its tail, a large Long-tailed Weasel male, the largest of the three species in Canada, stretches nearly half a metre (20 in) in length, yet can slip into a hole just 3 cm (1.25 in) across. This enables it to enter small rodent tunnels used by mice and voles. In summer, it enters ground squirrels burrows in search of its favourite food. Average males measure 406 mm (16 in), their tail is 135 mm (5.25) long and they weigh 225 g (12.6 oz). Males are approximately 25 per cent larger than females, which on average weigh only 102 g (5.7 oz).
When winter approaches, within 30 days it grows a coat of white, giving it perfect camouflage against the snow -- all except for the tip of its tail, which stays black. A hungry predator, such as a hawk or owl, aims for that black tip, enabling the weasel to escape. Towards spring, between late February and April, in only 25 days, it reverses the process, acquiring the cinnamon-brown topcoat it will use all summer. This includes brown feet, unlike the other two species which retain white feet. The underside is usually buff-coloured." (Taken from the old weaselhead.org website).
Meadow Voles:
"Especially because they are so abundant in the habitats where they are found, meadow voles have crucial ecosystem roles. Many predator species rely on voles to make up a significant portion of their diet, especially owls, small hawks and falcons. In addition, meadow voles consume large quantities of grass and recycle the nutrients held in the grass through their droppings. They also help to aerate and turn the soil through their digging activities." From BioKIDS Inquiry website.
www.biokids.umich.edu/critters/Microtus_pennsylvanicus/
Yesterday evening, I went to an excellent talk on Writing-on-Stone Provincial Park / Áísínai'pi National Historic Site, which is about a three and a half hour drive south of Calgary. I’ve only ever been there once and that was 30+ years ago. A fascinating landscape to see and photograph. Rattlesnakes, too!
A 3:55 min video about Writing-on-Stone Provincial Park / Áísínai'pi National Historic Site from Alberta Parks:
youtu.be/_zsdWv0mQMI
After the walk, I paid another visit to where the Long-tailed Weasel can sometimes be seen. Various friends were there, too, and we were treated to a few good photo opps, including with some of the eight or so Meadow Voles it caught while we were there. It is an amazing hunter, moving so rapidly over the uneven, snowy ground and tangles of dead plants and fallen logs. I took a number of closer shots, so thought I would leave this more distant photo uncropped.
"Counting its tail, a large Long-tailed Weasel male, the largest of the three species in Canada, stretches nearly half a metre (20 in) in length, yet can slip into a hole just 3 cm (1.25 in) across. This enables it to enter small rodent tunnels used by mice and voles. In summer, it enters ground squirrels burrows in search of its favourite food. Average males measure 406 mm (16 in), their tail is 135 mm (5.25) long and they weigh 225 g (12.6 oz). Males are approximately 25 per cent larger than females, which on average weigh only 102 g (5.7 oz).
When winter approaches, within 30 days it grows a coat of white, giving it perfect camouflage against the snow -- all except for the tip of its tail, which stays black. A hungry predator, such as a hawk or owl, aims for that black tip, enabling the weasel to escape. Towards spring, between late February and April, in only 25 days, it reverses the process, acquiring the cinnamon-brown topcoat it will use all summer. This includes brown feet, unlike the other two species which retain white feet. The underside is usually buff-coloured." (Taken from the old weaselhead.org website).
Meadow Voles:
"Especially because they are so abundant in the habitats where they are found, meadow voles have crucial ecosystem roles. Many predator species rely on voles to make up a significant portion of their diet, especially owls, small hawks and falcons. In addition, meadow voles consume large quantities of grass and recycle the nutrients held in the grass through their droppings. They also help to aerate and turn the soil through their digging activities." From BioKIDS Inquiry website.
www.biokids.umich.edu/critters/Microtus_pennsylvanicus/
Yesterday evening, I went to an excellent talk on Writing-on-Stone Provincial Park / Áísínai'pi National Historic Site, which is about a three and a half hour drive south of Calgary. I’ve only ever been there once and that was 30+ years ago. A fascinating landscape to see and photograph. Rattlesnakes, too!
A 3:55 min video about Writing-on-Stone Provincial Park / Áísínai'pi National Historic Site from Alberta Parks:
youtu.be/_zsdWv0mQMI
Pam J, novogorodec, Jan have particularly liked this photo
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