Wherever a rare bird puts in an appearance it’s likely to quickly draw a crowd, especially if it’s easy to access, and near an urban centre . The Rusty Blackbird that showed up on Friday at Piper Spit on Burnaby Lake fit the pattern perfectly. News of the bird was soon flying around (couldn’t resist that pun) the birder and photographer networks, and people were headed down to the Spit from around the Lower Mainland: Vancouver, Surrey, and the Fraser Valley. Bonus one – the Thanksgiving weekend gave people time to make the trip to the lake.
So what’s the big deal? Well for birders it is a rare bird, meaning it shows up most years in the Lower Mainland, but in single-digit numbers, frequently one or two only, and often for just a day before moving on. In birder parlance, they’re usually one-day-wonders. Hence, the rush by many to see and photograph the bird, before it left. Last year the same species showed up here at Piper Spit, and it was a one-day wonder. Many people missed it, including me. Bonus two – the bird has been here for at least four days.
While a few rustys show up in the Lower Mainland most years, nearly all Rusty Blackbirds winter in the south-eastern US, along the Atlantic Seaboard to Florida, and throughout much of the eastern drainage of the Mississippi. So our Burnaby bird is quite far out of range for the species in fall/winter.
Its breeding range, however, is quite different; it stretches right across Canada, east to west, and extends into Alaska. The birds breed in muskeg, bogs, beaver ponds, and wet, boreal forests as far north as the tree line. A real Canadian, eh? It’s the most northerly breeder of all the blackbirds, which is why it’s something of a mystery bird. It’s little studied because of its mostly remote summer haunts, and its breeding biology is poorly known.
Compounding the mystery of its life cycle, is the mystery of its rapid decline over the past thirty or more years. Although some sources suggest we simply do not have enough information to draw definitive conclusions about the population changes of this species, there are many experts expressing concerns. For more information about the declining population of the Rusty Blackbird click here.
Locally, however, but having no bearing on its continental population, is some good news. Bonus three: a second bird turned up on Monday. There are now two Rusty Blackbirds at Piper Spit. To get one rare bird is a treat, but to get a second hanging out with it, is a wonderful happenstance. And even better is that these birds are very tolerant of people, and provide really good opportunities to observe them. When they do show up in the Lower Mainland, Rusty Blackbirds are usually skittish, and difficult to observe.
So head on down to Piper Spit and check out the new arrivals. They’re very cooperative, and show off their rusty-coloured winter plumage beautifully in the sun.