James Bay Shorebirding - peeps

Shorebird numbers in the James Bay coast were dominated by peeps. Most abundant were Semipalmated Sandpipers, and White-rumped Sandpipers (1 000 - 10 000 per day). But, Least Sandpipers were also common (usually less than 300/day).

Least Sandpiper (LESA)

By the time my group got there 80% or more of the Least Sandpipers were juveniles. On our second day, Ross and I observed 2 juveniles standing side-by-side that looked noticeably different:

Both of these LESAs are juveniles, but the one on the right is much paler. The one on the left, is, in my opinion, a typical looking LESA. The paler one seems to be at the extreme end of 'expected' variation, and may even be pale enough to be considered slightly leucistic. What are your thoughts?

Semipalmated Sandpipers (SESAs) often flocked together:

Over the course of my 2 weeks, I observed 3 SESA's that stood out because of the amount of red colouring near the base of their bill. The redness of all 3 individuals was limited to this area which is a good indication that they were eating in mud that stained their faces a different colour. I wonder why only 3 of them had this stain?

Adult SESA with unusual red/brown stain

Juvenile SESAs were generally tamer, were in smaller flocks, and fed further inland than the adults.

White-rumped Sandpipers (WRSA) were also abundant. We saw no juveniles, which isn't a surprise. The adults that we saw displayed the whole range from breeding to winter plumages. This individual is fairly advanced into its basic plumage: it has replaced its mantle, scapular, and some of its wing covert feathers.

The WRSA's tended to be more common in the rocky areas.

Adult SESA on the left, adult WRSA on the right:

Juvenile Bonaparte's Gulls were seen everyday:

Barb and I saw a wolf that came fairly close:

We also saw Black Bears almost daily - this one was fairly close to our favoured strawberry patch:

Satellite tagged birds

While in the Mackenzie Delta (Northwest Territories) this summer, I helped put satellite transmitters on 6 birds: 3 Whimbrels, and 3 Hudsonian Godwits.

Two of those Whimbrels are now in Atlantic Canada - 1 is in Newfoundland :)
The third one has left Atlantic Canada and is well on its way to Brazil, it undertook what is apparently a longer than 10 day non-stop flight (see the first link)!

http://www.seaturtle.org/tracking/index.shtml?tag_id=123745&full=1&lang=

http://www.seaturtle.org/tracking/index.shtml?tag_id=123746&full=1&lang=

http://www.seaturtle.org/tracking/index.shtml?tag_id=123748&full=1&lang=

All three Hudsonian Godwits are currently along the Hudson Bay coast. Interestingly, all 3 of them took indirect, and seemingly unusual flights to get there:

http://www.seaturtle.org/tracking/index.shtml?tag_id=123747&full=1&lang=

http://www.seaturtle.org/tracking/index.shtml?tag_id=123749&full=1&lang=

http://www.seaturtle.org/tracking/index.shtml?tag_id=123750&full=1&lang=

James Bay shorebirding - Part I

From July 30 - August 14 I joined Mike Burrell, Ross Wood, & Barb Charlton for daily shorebird surveys.
Our location was hither:

Although we did not find any crazy rarities (like a PRFA...) we did see several thousands of shorebirds, which I would prefer any day!

From the chopper you can see the 3 huts we lived in and the bay near the top of the photo. The camera is pointed towards the West:

Here's a selection of the shorebirds we saw:

Our group counted over 300 Hudsonian Godwits every day, some days reached 600. After spending a summer with these beautiful birds it was great to see the various stages of molt of migrating birds. The bird on the right is much more progressed towards its winter plumage than the one on the left.

We managed to find at least 3 colour banded Hudsonian Godwits. This one has an engraved white flag with "MK". It was banded somewhere in Canada, I'm not sure where though.

HUGO flock:

Marbled Godwits weren't plentiful in our area. Most days we saw less than 10, and most were flybys.

Short-billed Dowitchers were only seen at the Southern most point in our daily hikes where there was a creek mouth. The creek attracted higher concentrations and diversity of shorebirds, likely due to the increased nutrition in the area. A group of 3 SBDOs regularly visited the creek mouth.

Check out the bent beak on the bird on the right. Their beaks are very flexible, allowing them to probe into the mud and move their beaks around to find worms.

At first I thought these 2 birds represented two different sub-species. But now I believe that they're both Hendersonii SBDOs, but the one on the left has more dull winter feathers than the other.

Wilson's Phalaropes were uncommon. I only saw 2 or 3 (can't remember... and our eBird checklists haven't been submitted yet :p  ) - including this fairly fresh juvenile. It still had down on its head and neck!

(Least Sandpiper in front)

Red-necked Phalaropes were similarly uncommon. The only place we saw them was at the creek mouth. At first we were seeing adults that were molting into basic (winter) plumage. But by the last day there was a group of 5 spankin' juveniles.

Sex bomb:

I only saw Red Knots on 2 days (our group saw them on 4 or 5 days). These juveniles allowed a close approach:

Pectoral Sandpipers were common in our study area. We almost exclusively observed adults; however, by the last few days we had found at least a few juveniles.

Adults:

Unlike small peeps, I find PESA juveniles rather difficult to pick out and confirm. They do look 'crisper' (have a more scaly look), but the adults seem to look fairly fresh as well. The scapulars and coverts are more rounded on the juvenile, there is a more noticeable white 'V' on the back/mantle, and the streaking on the breast is more buffy.

Peeps to come soon!

Nice bum, where you from?

 -mosquitoes invading