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Monthly Archives: June 2016

ruffed grouse-145

We were out checking on our trail cams a few days ago we use to monitor our reintroduced elk herd (one was stolen – an $800 Reconyx; we reported the theft to the police, but it’s ‘not their top priority’). Didn’t see any live elk, moose, bear or wolves (however, quite a few were captured by the cameras) and only a couple of white-tails. I imagine the females of all species are busy with young and trying to be as secretive as possible, while the male deer are dealing with sensitive and fast growing antlers (the bull elk already have some pretty impressive growth!).

Of note, we did see several hen ruffed grouse and all of them had young. Didn’t see too many young poults, though; the ones we did see were smaller than a ping pong ball. But each hen did the ‘I’m hurt! I can’t fly! My wing is broken!’ and tried to lure me away from the young ‘uns. Some tried to scare me off with an ‘attack’, and al were quite vocal; hissing, mewing and doing other calls trying to distract me. I didn’t pester them for too long, just a minute or so while trying to get some photos of the ‘how to act wounded and lure the threat away from the babies’ routine.

One thing; there must have been great synchronicity in the hatch.  Synchronicity in hatching of birds, as well as the birth of ungulates, is thought to be good as it ‘swamps’ predators and helps reduce losses. For example, wolves and bears have an innate ability to know to look for newly born fawns and calves, but there is also an element of learning how and where to look which improves the effectiveness and efficiency of their search. So if the birthing season is prolonged, it gives predators a longer time period to hone their hunting skills to find newborn, good for predators but not so good for the prey. Once the newbies are a few weeks old, though, they have a much greater chance of escaping, as even a little fawn deer or calf knows how to run like the dickens or keep itself behind mom (e.g., a cow moose) as she fends off wolves or bears.

The best way to achieve a synchronized birth is to have a short, intense rut, when most of the females are bred in just a few days. A breeding cycle that drags on for many days, weeks, or even months, can be disastrous. And short, intense ruts are most likely to happen when there is a healthy population of prime, adult males around – they know how to woo the women.

It’s probably not near as complicated in grouse world, but the situation is likely similar. Older, male ruffed grouse might be better suitors than yearling; however, I suspect weather plays a more important role in grouse hatching success and synchronicity in nesting than behaviour. Early May – when the grouse were mating – was warm and dry. Late May and early June, hatching time for grouse, has been wetter and in a relative sense, cooler, which might not be great. Cool and wet weather can play havoc on new-born chicks; they often get pneumonia or other fatal ailments when the weather in inclement. Maybe next time we are out to check on our cameras we’ll see some more grouse families and get an idea on flock size. But at the moment, things are suggesting it could be a good fall for ruffies.

And given the ruffed grouse is one of the best tasting treats in the northern forest, that’s a good thing.

shoveler-2

The other day I looked out on the pond and there were two ducks sitting on a log beside a drake mallard. They had a lot of white on them and at first I thought they might be domestic mallards from a nearby farm. But they weren’t.

I had to run upstairs to get a bird book as I didn’t recognize the birds, having never seen this particular species before in full breeding plumage. So another new species recorded on our pond! They were, by the way, northern shovelers, a duck that’s apparently abundant during the breeding season in the prairies, the Yukon and Alaska.

Although Kenora is only a couple of hundred kilometers for the eastern edge of the prairie ecosystem, we don’t see a lot of what is in that biome, or only rarely.So It was great to see the shovelers, even though they didn’t hang around for too long. My bird guide indicates they migrate through and breed in the area, but I haven’t met anyone who has ever run across a nest or a young brood of shovelers here. I’ve met people who have seen theme here on occassion, mostly in the spring.

They do resemble a mallard, except for a bit more white and the extended, black bill that sort of looks like it was squashed in an early stage of development with a hammer.

Given its large, spatula shaped bill – some refer to them as ‘spoonbills’ – it didn’t surprise me when I read that it “has the most unusual feeding habits of any duck.”  If has a fondness for phytoplankton as well as zooplankton, sometimes feeding on the surface in deep water in lakes devoid of aquatic vegetation. To strain for plankton, water is ingested at the tip of the bill then jetted out at the base. Given it likes plankton, it’s no wonder they are known to gather in large numbers on sewage lagoons. Maybe that’s one of the reasons they aren’t exactly held in high esteem as table fare . . .

There’s not a lot of plankton in our pond, especially at this time of year, but there is a lot of insect life, the likes of which makes up about a quarter of the shovelers diet. As animal life is high in protein, it makes sense this species might stop in at our pond for a quick, nutritious meal before moving on. Seeing these birds were on our pond in late May, it’s likely they were drakes that had abandoned their mates; drake shovelers leave their mates as early as the first day she begins to incubate, although some stick it out until the eggs are hatched. In nearby Manitoba, shovelers usually commence nesting in early May.

By the way, the sora rails have also returned to the pond. Hopefully the summer and fall will bring some other species I haven’t yet seen from the deck. I’ll keep you posted.