May 20th – Winding Down

Male Eastern Bluebird among the blossoms. -CRintoul

It’s hard to believe but our migration monitoring is five sixths done! Where has the time gone? And just think of the huge biomass that has passed by in the last 50 days. Staggering!

You could feel today that we are on the down side of the slope – fewer birds along the net lanes and in the woods. Many species represented by just a single bird or a couple. In many species, females have replaced males as the latter tend to push through earlier in order to carve out territories before the females arrive. The local long-distance migrant breeders have largely paired up and many have started nest construction. It happens so fast.

Yellow Warblers are losing no time getting down to it. Here a female is well on the way to forming her nest. -CRintoul

After a dismal April (one of the worst ever in terms of banding numbers), we rebounded in May. The average daily catch for the 1st 10 days of May was 59, well above the average (going back to 2011) of 42.3. The average daily catch for this most recent 10-day stretch was 46, slightly higher than the average of 44.6.

SY male Orchard Oriole. -CRintoul

We continued to catch and band Baltimore Orioles, reaching and then surpassing the 100 bird mark. We finished the day with 102, exactly double our next highest year.

Banded 34:
1 Eastern Wood-pewee

Eastern Kingbird showing off its red crest. -ELO

1 Eastern Kingbird
1 House Wren

Cedar Waxwings are checking out the flowering Serviceberry trees. -MAS

1 Cedar Waxwing
2 Blue-winged Warblers

Female Tennessee Warbler. -MAS

1 Tennessee Warbler
1 Nashville Warbler
1 Northern Parula
6 Yellow Warblers

Nola and Madison with Magnolia Warblers. -ELO

2 Magnolia Warblers

Female American Redstart. (Compare with the SY male shown yesterday.). -MAS

2 American Redstarts

Female Common Yellowthroat. -MMG

1 Common Yellowthroat

Female Northern Cardinal. -MAS

1 Northern Cardinal
2 Rose-breasted Grosbeaks (bringing our total to 75 (vs old record of 61)
1 Chipping Sparrow

Baltimore Oriole #100!! -MAS

5 Baltimore Orioles
4 American Goldfinches

ET’s: 68 spp.
More pictures:

Bald Eagle trying to drop on a beaver; it ran out from under and up the bank. -ELO

The eagle pair waiting for another opportunity at the beaver – one above and one on the ground. -ELO

Brewster’s Warbler – originally banded 2 years ago. -ELO

Four young Double-crested Cormorants at the head of Slink Island. -ELO

The shape of the outer primary, compared with the image in Pyle, indicates that this Eastern Kingbird is an ASY male. -ELO

Tree Swallow – the ones at Ruthven seem to be particularly photogenic. -ELO

Young male Magnolia Warbler. -MAS

Another look at that Magnolia Warbler. -MAS

Tufted Titmouse about ready to let those fingers know it’s not happy. -ELO

Female Ruby-throated Hummingbird displaying the length of its tongue – good for getting nectar from tubular flowers (and feeders). -MAS

Grunt work(er). Thanks Josh!! -MMG

ASY male Orchard Oriole at the hummingbird feeder. -MMG

Our Purple Martin colony numbered 24 birds this morning. The clear preference for nesting is these gourds (vs the aluminum apartment complexes). -MMG


Leave a Reply