Tag Archive | northern shrike

No Costume Needed: Meet the Northern Shrike, the Bird of Halloween

By Catherine Warwick

The most “Halloween” bird around is the Northern Shrike, aka, the “butcher bird”. Although it is a Passerine, which is a perching songbird, it has rejected the usual cutesy song-bird personality and instead is a merciless hunter. Not only does it hunt other birds, but it is known to rip its kill to shreds and impale pieces of the body on barb wire fences and tree branches. I don’t think a bird can get more grisly than that, it would even make a Crow shudder. It needs no costume to strike fear in a little bird’s heart, however it does sport a small black mask and a heavy hooked beak.

The Northern Shrike will scout out a nest or mouse hole and wait to strike. If it’s after a flying bird it may force it to the ground with its feet. Then it makes the kill with its hooked beak. In its upper bill (at the front) it has a vampirish toothlike spike, called a tomial tooth, that it uses to break the necks of its prey.

The Shrike spends its summer in the far north and just comes to Calgary for the winter, that’s how tough it is. Apparently, it finds our “balmy” -20°C days pleasant.

Ron saw the pictured Northern Shrike at Carburn Park last winter. Shrikes are known to return to the same winter territory year after year, so keep an eye out; you might see this tiny terror perched high atop a tree, scanning for its next victim.

In the summer they will head back to the far north to nest. One sweet fact about this bird – their nest is a deep cup that, when the female is in it, only her tail can be seen.

This winter get your binoculars ready to see a real horror icon: the Northern Shrike.

-Cathy

Note: The Northern Shrike has a summertime lookalike, the Loggerhead Shrike. Northern Shrikes are in our area from early October to late April. Loggerheads arrive in mid-May and can sometimes be seen into September. There is the possibility of a little overlap in May and September. Loggerhead Shrikes are a little smaller than Northerns, and have a clear breast without the barring of the Northern. They have a smaller bill with a tip that is less hooked, but they share the feeding habits of the Northern Shrike. -Bob

More spring migrants at South Glenmore Park!

Apr6

Posted by Dan Arndt

Our last outing with the Friends of Fish Creek Winter birding course on March 29 was to South Glenmore Park in hopes of seeing some migrant swans, some early sparrows, and who knows what else! We did have a few good sightings, and it rounded out the course perfectly in my opinion!

South Glenmore Park – March 29, 2015

It seems like not a week goes by where we haven’t been seeing at least one Northern Shrike on our walks, and soon after we started, we heard a commotion in the spruce trees above us and spotted not one, but two of them up there! One appeared to be an adult, while the second, which I was able to get a photo of, looked a little duller, which would indicate that it’s likely an immature bird.

Northern Shrike
Pentax K-5 + Sigma 150-500@500mm
1/640sec., ƒ/8.0, ISO 320

We had a good number of Trumpeter Swans fly by us heading to the open water on the west end of the Glenmore Reservoir, but it was nice to have a pair fly by a bit closer to us, trumpeting away as they flew!

Trumpeter Swans
Pentax K-5 + Sigma 150-500@500mm
1/640sec., ƒ/8.0, ISO 400

While the rest of the reservoir was still frozen over, we didn’t really get too much of a look at the birds on the far west end, so we headed up onto another parallel pathway to feed some birds, and we did also hear the beautiful song of the Golden-crowned Kinglet, the first I’d heard since January. There seemed to be far fewer of them around this year than in past years, so it was nice to see them again up close!

Golden-crowned Kinglet
Pentax K-5 + Sigma 150-500@500mm
1/800sec., ƒ/6.3, ISO 3200

We also put some seeds out for the chickadees and nuthatches, and had a few Black-capped Chickadees and at least three Red-breasted Nuthatches come in to stock up their supplies.

Red-breasted Nuthatch
Pentax K-5 + Sigma 150-500@500mm
1/500sec., ƒ/8.0, ISO 3200

So after a relatively quiet morning with very few birds up close to us, it was nice to almost literally stumble over this Snowshoe Hare. Unlike the one we found a few weeks earlier, this one was beginning the transition out of its winter coat and into the more typical brown summer coloration. Even still, it was still difficult for many of our group to see unless it was directly pointed out to them.

Snowshoe Hare
Pentax K-5 + Sigma 150-500@500mm
1/800sec., ƒ/8.0, ISO 640

In addition to the newly arrived kinglets, swans, and gulls of the past few weeks, we also found a number of aspen budding out in their fresh catkins, better known of course as pussy willows. One of the signs of spring that’s almost as reliable as the first Red-winged Blackbirds and Red-tailed Hawks!

Pussy willows
Pentax K-5 + Sigma 150-500@500mm
1/800sec., ƒ/8.0, ISO 640

Our very last sighting was a trio of Blue Jays, right in the exact same spot where a few other groups had seen them earlier in the week. It’s quite possible that there’s a nest down below the ridge at this point, but with how dense the willow and aspens are in that area, it’d be nearly impossible to find it.

Blue Jay
Pentax K-5 + Sigma 150-500@500mm
1/800sec., ƒ/8.0, ISO 200

And with that, our winter birding course comes to an end. In fact, yesterday, April 4 was our first outing for the spring course, so get ready for migration to ramp up over the next few weeks and the colors to really start to brighten up!

Have a great week, and good birding.

Q & A: Northern Shrike

Apr24

By Bob Lefebvre

Here at the Birds Calgary blog, we receive a lot of questions from bird-friendly folks throughout the province. We are going to start sharing some of them with our readers as just another way to spread bird knowledge.

If you have a question, email us at birdscalgary@gmail.com. We may post your question and our answer. We won’t print your name or email address without permission.

Q: I was walking along the Bow south of 22x today [April 6] and saw these, which I haven’t seen before. I couldn’t get close for a good picture but I’m hoping you can you tell me what they are.

Thanks, Jim

A: These are Northern Shrikes, which are songbirds that behave like raptors. They hunt insects, snakes, rodents, and small birds. Shrikes are called “Butcher Birds,” and they have been known to take birds as large as Blue Jays and Mourning Doves. They will often impale their victims on a thorn or barbed wire, which is thought to be a way of marking their territory and attracting mates, and for short-term storage of food. Shrikes are only about 10 inches long, but they have a sharp hooked beak like a falcon’s. They sit on high perches and scan for prey, then swoop down on it. Sometimes they hover over the ground to watch for prey.

These birds will be on migration right now (I have seen a couple in the same area in the last two weeks). There are always a few around here in the winter, but they breed in the high arctic. In the summer, we have the closely related Loggerhead Shrike on the prairies east of town, but it is not usually seen in the city.

By Catherine Warwick

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