Monthly Archives: February 2009

Today at Kingsford – Sharp-shinned Hawk

Sharp-shinned Hawk checking out feeders

Dan is always up earlier than I am, but especially this morning, as I’d stayed up late last night to download a large file (something we can’t do during the day because of our download threshold limits, but we have an unlimited-transfer window in the wee hours of the morning). So I was still snoozing in bed when he came in and woke me up, and told me to grab my camera because there was a Sharp-shinned Hawk at the feeders. A bit bleary-eyed and foggy-brained, I still hopped out of bed quickly, reluctant to miss such an interesting sighting. I switched out the lenses on my camera, and then joined Dan in the studio where he was looking down on the feeder ensemble.

Sharp-shinned Hawk checking out feeders

Sitting on a small stump amid the tangles of the raspberry canes was a small accipiter. Its back was to us, and to the feeder, but facing the open direction of the steep slope. It was a bit lower than the feeders, slightly downhill. It was constantly vigilant, turning its head back and forth, looking over its shoulders, and up at the feeders above. Given the bird’s relatively small size, I figured it was probably a male. He’s a youngster, hatched last summer – you can tell by the brown back and yellow eye; an adult would be blue-gray with an orange eye.

Despite an ongoing scolding by the chickadees in the area, they remained their bold, cocky selves, still continuing to come in to take seeds. After running off a few shots (all of which looked pretty much the same from the vantage we had), I lowered the camera and just watched him sitting there. Dan got out his video camera and grabbed a short clip of him. Half a minute later, a chickadee or some other bird that had come in to the platform caught his eye and he swooped off the stump, into the open downhill, then made a quick u-turn and flew rapidly up the slope, over the feeder (startling the little bird, who zipped off), and around the corner of the house after his intended prey, out of sight. We don’t know if he caught it or not.

Sharp-shinned Hawk checking out feeders

I certainly don’t begrudge having the hawks come and visit our feeders. This is the first one we’ve seen hanging around out there this winter, though Dan also had one do a fly-by a few weeks ago. Many people don’t like seeing the “ugly” side of nature happening in their backyard, but it is simply that, just nature. The hawks need to eat, too. And if we’re putting out food for the little birds, it seems a bit prejudiced to allow one group of birds to eat in your yard but not another. Because he’s so young, he is probably still honing his hunting skills. I’m quite happy to have him practice around here where we have the privilege of watching him. Also, it will be a little easier for him to get enough food when it’s so concentrated in one area; out in the rest of the forest, it’d be a daily struggle finding enough nutrition to survive the cold.

After the chase we found him again sitting in a tree behind the house, but he then flew off down the road and wasn’t seen again. He’s welcome back anytime, though, we’d love to have him around.

Bandit at the window

Raccoon

As illustrated in yesterday’s post, we’ve had a few visitors coming around at night for the last week or so. Coons spend most of the winter holed up in a cozy hollow log or other niche (your attic will do just fine), in a state called “winter rest”. It differs from hibernation in that the metabolism is suppressed a little, but not nearly as far as in true hibernators. This allows them to save energy during times of heavy snow cover, when food is harder to find, but also means they can reenergize quickly when snow melts and there’s the opportunity to get some foraging in before the next snowfall. I guess the thaw last week prompted these two to come out of the hole where they’d been snoozing.

Raccoon

It didn’t take them long to find the stale bag of dog food we’d set out on the deck. We hadn’t seen a raccoon around the area since we’d moved in, and with them hidden away for the winter anyway they weren’t really on my mind. The dog food was some old stuff we’d had for a couple months and decided to replace. We thought we’d maybe toss a handful or two out for the multitude of jays as a treat, so it was sitting on the deck where it was easy to access. Not just for us, but for the coons, too, it turned out. They had the bag tipped over in no time, and crawled right in to better enjoy the feast. I didn’t have the heart to shoo them away from it. I figured there were worse things, nutritionally speaking, that they could get into. Raccoons are the quintessential omnivore, eating whatever they can get their little human-shaped hands on. Most frequently this is invertebrates, which comprise about 40% of their diet, but about a third is plant matter, including such things as berries, acorns and other nuts, and some 27% is vertebrates. They prefer vertebrates that are easy to catch, like nestling birds and eggs, or frogs. Fatty foods such as fruits and nuts are the preferred diet in the fall, since they allow the coons to build up a fat layer for the winter.

Raccoon

They seem to both be youngsters, judging by their size. Either that, or they grow them smaller up here than I’m used to. Not having seen many raccoons here, it’s hard to judge. They always come around together, and I presume they’re likely siblings from the same litter last summer. Recent research suggests that related female raccoons live in “fission-fusion societies”, where they inhabit the same general area and periodically come together at common locations such as popular foraging areas or night-time roosting sites. These could be two sisters, snoozing together during the day and visiting our feeders at night. Come spring, once mated, they will likely split up to birth and raise their kits, but may come together again once their kits are independent. Males will sometimes form groups of three or four during the mating season in order to protect their territory against intruders (strength in numbers), but are often unrelated to one another.

This one flattened herself out in the platform feeder when I stepped outside for a photo, and didn’t budge, perhaps hoping I might not notice her and would go away. She would have had to expose herself awkwardly in order to climb down from the platform – given the spindliness of the supporting pole, it’s somewhat amazing that she got up there in the first place.

Raccoon and Raven

At the point that Raven and I stepped out (Raven to pee, me to get photos), they decided it might be wise to move off to the trees temporarily. Here Raven watches as one climbs over the deck railing and down to the ground. They are remarkably agile creatures, given their large, bulky shape. This shouldn’t be too surprising, I suppose, considering that they spend so much time in trees.

When I was in late high school, at some point after obtaining my driver’s license, I was returning home from a year-end band party at one of the band members’ homes out in the country, via country roads to my own parents’ home in the country. Along the way I encountered a tiny little raccoon staggering about the middle of the road. I stopped the car and, not spotting any relatives, gathered it up in a blanket. In retrospect there may have been a mother hidden somewhere I couldn’t see, and it may have been better for me to move the kit to the ditch, out of harm’s way, and just leave it there, but I didn’t. I brought it home, and we raised it. Come fall we started letting it outside at night, and it would go out and explore but return home to sleep for the day, climbing in behind the kitchen cabinets where there was a cozy narrow space.

Raccoon

That coon was an experience. We named him CoonBaby, in an effort to not get too attached (it didn’t work). He was messy, but in a predictable way – once he had settled on a couple of corners to defecate in, he was reliable enough in using them that you could put down newspapers and not have too much mess. Around his food dish was always a huge mess. In that way that coons do, he would pat his food with his hands before eating it, which, with wet dog food, meant that he would leave little pawprints all around his dish. The habit of feeling their food is a hardwired behaviour for raccoons. In the wild, the routine is intended to identify and remove unwanted bits of their food item before they eat it. This tactile sense is heightened when they’re feeding at the water’s edge, as the water softens the calluses on their paws. Raccoons don’t “wash” their food, but captive coons might still dunk their food in their water either in order to feel it better, or simply as an instinctual behaviour, mimicking foraging at the water’s edge.

Raccoon

Eventually that fall he stopped coming back in the morning, which was just as well as the nights were getting colder and it was important for him to find a place to hole up. For a while he would return in the evenings, looking for a handout. Fig Newtons were his favourite. He made some friends, quite possibly joining a group of other males, and it didn’t take long for them to start coming by the house in the evening, too. Fig Newtons became everyone’s favourite. CoonBaby taught them to grab the edge of the storm door with their paw, and let it bang, to alert the food-dispensers inside that they had arrived. Even during the winter, when they would disappear for spells and then periodically show up looking for food, we always knew when they’d come by. Raccoons have unique (albeit subtle) mask patterns, so we could identify CoonBaby from the bunch of them (it also helped that even after he started to go wild, he was still always the most willing to come and take a newton from our hands). We saw him again the following winter, but the third winter he didn’t come back. Although a captive raccoon can live more than 20 years, wild raccoons average only about 2-3, eventually either being predated, hit by a car, or dying due to starvation or exposure over the winter. Distemper can also be a frequent cause of mortality.

Raccoon

Right now we would just be getting into the time of year where coons would be starting to feel a bit horny. Depending on latitude, mating can begin anywhere from January to March, with later timing occurring further north. Females are only in heat for three or four days, so males roam large territories during the spring, hoping to come across a receptive female. Once a male finds a female, he’ll woo her over the course of several nights, spending up to an hour in bed with her each evening. Gestation lasts about two months, so females who mate in March will give birth in May. The kits are about 4 inches long when born, and are naked and blind, and very much helpless.

It was a cold night in late April or May during CoonBaby’s first winter that we went out to answer the door for the coons and discovered something on the porch. Closer inspection revealed it to be a newborn baby coon, no more than a day old, with umbilical still attached. It was cold and very likely near death. It is hard to say how long it had been there, or even how it had come to arrive on the porch. Did a first-year female have an “accident” there and not recognize it as a young she should take home? Or was the kit intentionally brought and left at our door? Of course, we would never find out the answer, but the reason for the kit’s appearance was of only secondary importance. We brought it in and warmed it up, and offered it some milk. The next day some baby formula was purchased, and Mom took on the daunting task of raising this tiny creature.

Raccoon

She survived, and not only that, she thrived. Mom named her Lily. Having already gone through the chore of raising one coon the previous summer, and knowing how much attention they desire, Mom located a raccoon rescue in a nearby town that fostered out baby coons over the summer. We adopted a second one, who was named Camomile, or just Cammy. The idea was that they would entertain each other, but it didn’t exactly work out as planned, and instead they just became double trouble. They were still lots of fun, however, and, just like CoonBaby before them, would come and sit with you while you were reading, let you pick them up and carry them around, and play with them. They had sharp little teeth, but so do cats, and though they played rough it wasn’t all that different from roughhousing with a cat. It was hard not to get quite attached to them. That fall, instead of joining the local coons at the house, they were taken back to the rescue organization, where they were gradually habituated to a wild existence, and then released in a forest tract about an hour away. Of course, we have no idea of how they fared after that, but I hope they both at least lived long enough to raise their own families.

Seeing these two cuties visiting our feeders brings back memories of those couple of summers we spent living with raccoons, most of them good. Of course, despite my fond recollections of the experience, I think I would turn down the opportunity to do it again – just too messy, and too much work, requiring constant attention, like living with a little toddler!

Today at Kingsford – Raven and the Visitor

Raven and Raccoon

Behind the scenes

Magpie display at Royal Ontario Museum

So as indicated in yesterday’s post, on Friday I visited the Royal Ontario Museum to check out some study skins they have in their collection. These are all kept behind the scenes, in a large room full of big cabinets crammed with drawers of stuffed bird skins and taxidermied bird mounts stacked on desks and on top of the cabinets. It’s not a room that the general public often gets a chance to see. The first time I got to visit it, my mom was working with the then-curator of birds on a few projects, and he took us through. He showed us some colourful birds, warblers, sunbirds, etc., all smaller species. I recall asking if they kept any really big birds there. He took me to the back and pulled out a huge albatross skin. It was big, alright. I was teased about that for a while afterward.

Bird skin storage cases at Royal Ontario Museum

I’ve been through a few times since, though not many. I’ve gotten to know the current curator, who has welcomed me to come in whenever I need to check things out, just drop him a note. I found myself in just such need with these blackbird skins, so since I was back in the vicinity anyway I opted to take advantage of the situation and go in to look at the collection. I was rather late getting in because I missed my intended train, but I still was able to go through my list of species and find all the ones they had specimens for, with a bit of time left over for checking out some birds of paradise.

Meadowlark skins at Royal Ontario Museum

Many of these specimens are ancient. Although some are still collected, particularly of little known or tropical species, and the museum also continues to receive skins from roadkill or scientific research studies (such as those that require collecting a few specimens to examine stomach contents), the majority of the collection (at least, those parts of the collection I’ve looked through) is from the early to mid-1900s. Many species are represented in the collection by several dozen skins, incorporating different age and sex classes, across their many subspecies and wide range of locations, moults and plumages.

Bobolink skin at Royal Ontario Museum

Each skin is labeled with a bunch of information, neatly hand-written up to the 1930s, typewritten thereafter. The species, of course, but also the collection date (this one, for example, is from 1883) and collector, the location it was taken from, the sex and age (if known) of the individual, and sometimes notes on the details of its collection, such as habitat or behaviour. Each bird is also assigned a unique specimen number, which every single specimen – whether bird or bug or bone – receives upon entering the collection, and helps with cataloging the vast inventory of items. This one is #70239.

Blackbird skin at Royal Ontario Museum

The occasional skin also has other interesting items associated with it. Some will come in with eggs or nests (stored in a different room in the museum, but their connection is documented using their unique specimen numbers), while some, such as this one, may have their stomach contents dried and placed in a clear capsule with its own tag. Others may have their skeleton retained, and the ROM actually pioneered a new method of preparing such specimens by removing the bill and feet from the skin as well to create a full skeletal set, while still maintaining the integrity of the rest of the skin. These additional pieces of data are more valuable connected together than each would be separately, because they draw lines, forms associations that would be difficult to make otherwise.

Blackbird skins at Royal Ontario Museum

The skin collection is used by many people for many purposes. I’m in there of course to examine plumages for use in illustrations I’ll be doing, and this is a common use of the collections. Some researchers come in to take measurements of the skins, to make correlations between anatomy and other variables such as sex, age, location, habitat, etc. People studying plumage characteristics, such as UV reflectivity or iridescence, can have access to a great number of very accommodating specimens (the live birds would probably kick up more of a fuss about their part in the studies). Genetic samples can be taken from the skin, and isotope analyses can be done using the feathers. Skin collections can be used as reference sources for identifying feathers or other bird parts collected from archeological sites or airplane collisions (although increasingly such work is being done using genetic barcoding). And those are just a few possibilities.

Oriole skins at Royal Ontario Museum

I love the drawers of colourful birds, all carefully lined up with their heads to the left and tails to the right, in straight, orderly rows, arranged by species and subspecies. The skins are laid on their backs, which are less curvy than their other sides. After years and years of sitting there, they develop board-flat backsides. The wings stiffen after the skin is prepared, so if a spread-winged specimen is desired the wing must be spread during preparation; you can’t open the wings of any of these birds, and trying to do so will just ruin the specimen. Some are prepared with a stick tucked inside, like a popsicle, but most are not, and must be handled carefully around the body.

Baywing skins at Royal Ontario Museum

When you walk into the skins room you can easily detect the smell of formaldehyde, or whatever chemical it is that they use in preserving the skins (I’ll admit to not knowing the specifics). On opening the doors to a cabinet, however, the smell hits you in the face, and it takes a moment or two to get used to it. Some of the early skins were preserved with arsenic, and they have signs up advising people using the collection to handle skins with gloves and to wash their hands before eating. Eating in the skins room is strongly discouraged, for obvious reasons. For some reason I can’t fathom, being in the collection always makes me very hungry, and the first thing I usually want to do upon leaving is find myself (a place to wash my hands and then get) something to eat.

There is some debate about the ethics and necessity of collecting bird specimens, and indeed there are examples in the past where bird collecting was done without regard for the health of the species as the species grew rare – or perhaps, because the species was growing rare, it was felt even more important to collect specimens before it disappeared. The Ivory-billed Woodpecker is an example of this, where its decline was exacerbated by a rush of collectors trying to secure a specimen for their particular institution while it was still possible to get them. Collecting practices these days are much improved from those past, usually requiring permits and generally done ethically and sustainably. Where birds are rare, it’s not done at all, and instead the required data is obtained through live studies, blood samples, and photography. However, skins still provide a valuable resource to scientists, illustrators (such as myself), and educators alike.

Paradise at the museum

King Bird of Paradise, Cicinnurus regius

I am back in the Toronto area for a couple of days, running errands. The primary purpose of my trip was to bring the cats back to the adoption agency’s vet to be fixed, but while I was in the area I thought I’d take advantage to see a number of people who I don’t get to often now that I’m farther away, and run a few errands. One such errand was to visit the Royal Ontario Museum’s bird skin collection. I needed to have a look at some of their blackbird skins for the paintings I’ll be doing. There are some things that are just easier to see in person. I’ll write a bit more about the rest of the visit tomorrow when I have some extra time, but for now I wanted to post these photos of a King Bird of Paradise, Cicinnurus regius.

King Bird of Paradise, Cicinnurus regius

I spent most of my time taking photos of the particular blackbirds I was interested in, but I couldn’t help but take a quick peek into one of the other cabinets nearby. This one held many of the birds of paradise, including this one, the King Bird of Paradise. It’s just tiny, only about 6 inches long from beak to bum, with an additional 10 inches of tail plumes. It’s the smallest of all the birds of paradise, but one of the most brightly coloured, with its flame-red back, bright white belly, and spots of brilliant emerald green. It’s native to the lowland forests of New Guinea and surrounding islands, and fortunately, unlike many of the birds of paradise, it’s rather common through its large range.

This may be the closest I get to seeing a bird of paradise for a long while (I do hope one day to visit that region of the world, though). The skins, even though they lack the character and vitality of a living bird, are still gorgeous nonetheless. However, the live birds are surreal. Check out this beautiful photo (obviously not my own) that I found on the web of the species; taken by “Robert” and posted to his Pbase gallery: