Late migrants

There are a few late migrants still passing through. Among the new birds this week were numerous Blackpoll Warblers singing high up in the treetops. I spotted this Yellow-bellied Flycatcher along a roadside near Nephton.

Field birds and forest mammal

I did some early morning birding in some old fields near Buckhorn. As I walked among the hawthorn trees and juniper thickets, I flushed three Field Sparrows and one Song Sparrow off of nests. There were at least eight Clay-colored Sparrows singing. I also flushed a pair of Common Nighthawks who seemed very distressed - I quickly moved on.
Clay-colored Sparrow
Bobolink
Late in the morning, I briefly strayed into the forest edge, at the edge of a large pond.
Mother bear watches me closely
I soon saw half a dozen large piles of bear scat, deposited recently in a patch of violets. It looked very fresh. A rustling sound about 30 metres away revealed the very close proximity of a mother and two cubs. The cubs quickly climbed a tree while their mother stood at the base with her gaze fixed on me. I took a quick photo and headed off in the opposite direction. In retrospect, I think it was fortunate that I paused to consider the droppings. Had I not, I might have had a much closer and more consequential encounter with the mother bear.

Golden-winged Warbler

So far, these have been difficult to find - there appears to be much more suitable habitat than Golden-wings. The tally so far is three Blue-winged Warblers and only a single Golden-winged, plus several birds I didn't see that were singing the typical Golden-winged song.

Cerulean Warbler

Cerulean Warbler
The Cerulean Warbler is another rare species known to breed in the area. There are estimated to be fewer than 1000 pairs nesting in Canada and numbers in the US are in decline. This spring I will be checking suitable habitat (mature hardwoods) for their presence.

Today I visited a woodlot we had skied through last winter - we'd made a mental note to return to observe the breeding birds. While much of the woodlot seemed perfect for Ceruleans, I found none until I was deep in the lush core. I stopped to listen to a Red-headed Woodpecker calling when I heard the first of many Cerulean songs. I estimated that there were not fewer than four males singing. Given the season, I can't rule out the possibility that these were migrants. I'll return in a few weeks to get a better sense of what's going on.

Blue-winged and Golden-winged Warblers

Blue-winged Warbler
Some of the county roads running south from Stony Lake hold good habitat for Golden-winged Warbler, a species designated as threatened species by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC). There is evidence that Golden-winged Warbler populations are negatively impacted through introgressive hybridization with the very closely related Blue-winged Warbler. We hope to monitor suitable sites in the coming weeks, when the males are singing on territory. A casual drive today turned up a single male Blue-winged Warbler (see photo) and a single male Golden-winged Warbler.

Summer warblers

We awoke to the song of a Warbling Vireo in the yard. These birds are common breeders in the open parkland around the locks at Burleigh Falls and Youngs Point but in our yard, they seem to be transient. In the hardwoods, I heard a first Scarlet Tanager of the season. Warbler numbers are low although many of the resident species are on territory. Here are some of the more common ones.
Black-throated Green Warbler
Common Yellowthroat
American Redstart
Northern Waterthrush

Grosbeak vs. Grosbeak

More Blackburnian Warblers are singing in the patches of eastern hemlock along an adjacent cottage road. Each year, a few remain to breed.

A handful of Evening Grosbeaks continue to visit our feeders. Here is a brief video showing the usual outcome of an encounter between Evening and Rose-breasted Grosbeaks at the feeder.

...more arrivals

Common Merganser swims by the dock
We heard a few timely arrivals around the house this morning, including a Baltimore Oriole and Common Yellowthroat. Off the dock swam a pair of female Common Mergansers.

A bike ride through the hardwoods turned up some new arrivals including four Black-throated Blue Warblers, an American Redstart, a Northern Waterthrush, and Yellow-headed Vireo. I heard Ruffed Grouse drumming in two areas.

The number of singing Ovenbirds seems to have doubled from yesterday.
Other birds seen and heard included Broad-winged Hawk, Great Crested Flycatcher, Least Flycatcher, Yellow-bellied Sapsucker, Rose-breasted Grosbeak, Blue-headed Vireo, Blackburnian Warbler, Yellow-rumped Warbler, Black-throated Green Warbler, Black-and-white Warbler, Nashville Warbler.

Migration continues

Migration proceeds. In the morning we heard our first Yellow Warbler of the season. Blue Jays are particularly abundant at the feeders with up to 30 attending at a given time. Numbers of White-crowned Sparrows are omnipresent this week - today we saw up to eight at once and heard their song wonderful song continually. Shortly before dusk, we heard a Brown Thrasher.

A walk up through the hardwoods revealed some new arrivals - Ovenbirds sang in only a few territories. No doubt more will arrive in the coming days. We also heard Black-throated Green, Palm, Nashville, and Yellow-rumped Warblers, Blue-headed Vireos and Least Flycatcher.

In the evening, I paddled back into the cattail marsh to check on the status of the Wood Duck box. There was a lone male twenty metres from the box but there was no sign of the box being used. Also present in the bay was a female Common Merganser, a pair of Mallards, a pair of Common Loons, several Swamp Sparrows and a Belted Kingfisher.

Yellow-rumped Warbler and Rose-breasted Grosbeak

The pace of migration is picking up. We wake up to warbler song filtering through the strident calls of Evening Grosbeaks and Red-winged-blackbirds. The above photo depicts one of a pair of male Rose-breasted Grosbeaks that visited the feeder yesterday evening. The Yellow-rumped Warbler is abundant right now. The bird shown below allowed us to capture a few snippets of his distinctive song.

Pine Siskins and new warblers

We experienced an influx of White-throated Sparrows overnight. These were accompanied by the first White-crowned Sparrow of the season. A lone, lingering Evening Grosbeak was joined by three male Purple Fiches and four Pine Siskins.

In the nearby woods, we saw our first Hermit Thrush, Blackburnian, Yellow-rumped and Black-throated Green Warblers of the season.
Here is a close-up of a male Common Grackle tacken outside our kitchen window.

Caspian Terns

Early this evening we heard the rasping calls of a pair of Caspian Terns flying past the mouth of our bay. This is the earliest arrival date we've had on the lake. Ring-billed and Herring Gulls as well as Common Terns nest on the rocky islets in the lake. We suspect that the Caspian Terns might also breed here but we've yet to find a nest. Last summer, we observed adults feeding fledges young of the year outside of Gilchrist Bay.

Another new arrival was Yellow-rumped Warbler, heard singing in our yard. This is a pretty late date.

Prospecting Wood Ducks

Local Wood Duck populations are limited by the availability of cavity nest sites. Such sites are rarer than in the past as a result of swamps being drained and forests being cleared. Traditional forest management practices have undervalued the importance of dead snags to wildlife, including Wood Ducks. We have seen pairs prospecting for nest sites in an upland hardwood forests, more than a kilometre from the nearest wetland. This spring, we erected a Wood Duck nest box in a nearby cattail marsh - no signs yet of tenants.

Broad-winged Hawk

We heard several Broad-winged Hawk calls this afternoon but didn't see the bird, leaving the identity of the caller open to question - the local Blue Jays are excellent mimics of both of our resident buteos. In the evening, a Broadwing flew over our picnic table as we ate our burgers. We also saw our first Belted Kingfisher of the season.

Norhern Flicker

Another common woodpecker has returned. This one is a male.

Loons return

Common Loons returned to the area in the last week. This pair appeared at the edge of the receding ice today - you can see some residual slush in the water. A pair typically nests in the nearby back bay. Also present were pairs of Common Mergansers, a few of which will remain in the area to breed. Martha took these shots from the canoe.Common Loons

Buffleheads moving through

The Bufflehead is among the first species of waterfowl to appear when the lake ice "goes out". Like the other diving ducks, they don't readily take to walking up from shore; however, they seem content to court and dive for food in the shallow water near our shore. This species doesn't nest here. These birds will move on as lakes to the the north open up.

This shot was taken with maximum zoom, through our sun room window.

House Finch

Like the Northern Cardinal, the House Finch thrives in the villages and cities to the south, but we seldom see it here. In fact we've seen it here only twice before. It superficially resembles the Purple Finch.

Arriving sparrows

A lone White-throated Sparrow appeared today - the first we've seen of this species since late last fall. We look forward to their distinctive song although none remain to breed within earshot of our house. This is not the case for Chipping Sparrows, which also arrived today,

The big kahuna

Our old hopper feeder is fine. It was improved substantially by the addition of a tray to accommodate more seed and more birds - sounds fine, but all of this accommodating allowed the emptying of the feeder in a few days. Normally, this is fine but in the depths of winter, the feeder gets cleaned out if we're away for a couple of nights. My solution was to build a much larger feeder, one that might nourish a flock of Evening Grosbeaks for a week or more. As you can see, this one holds lots of seed but it positively dwarfs the visitors. At this point, I'm questioning whether bigger is better. Perhaps I should donate this industrial-sized unit to a nature centre.