Bay breasted Warbler today becomes species #44 for the year, some unusual Blue winged Warblers and Cerulean Warblers come back to Quabbin

Blue winged Warbler with black forehead, Rail Trail, Amherst, MA, May 8, 2026

Blue winged Warbler with black forehead, Rail Trail, Amherst, MA, May 8, 2026

Blue winged Warbler with black forehead, Rail Trail, Amherst, MA, May 8, 2026

Northern Waterthrush, Rail Trail, Amherst, MA, May 8, 2026

Northern Waterthrush, Rail Trail, Amherst, MA, May 8, 2026

Blue winged Warbler, KC Trail, Amherst, MA, May 8, 2026

Cerulean Warbler, Quabbin Park, MA, May 8, 2026

Nashville Warbler, Quabbin Park, MA, May 8, 2026

Today was a bit cool with temps in the mid 30's to start the day and highs that stayed in the 50's with a northerly breeze and overcast conditions.  Needless to say migration was mostly non existent overnight.  No matter the conditions it is early May and I will be out looking for stuff and today was no different.  I started out in Amherst with stops at Wildwood Cemetery, UMASS (multiple spots with Orchard Hill being depressing with more clearing of trees...a sad shadow of a previously great birding spot), the rail trail and a few other places before I headed back to Quabbin Park before returning home to get Wilson.  The notables for the day included warbler species #44 for me in the US this year with a Bay breasted Warbler while out walking Wilson, the continued Blue winged Warbler with a black forehead on the rail trail and a continued Cerulean Warbler at Quabbin Park (more on the Cerulean Warbler below).

Cerulean Warbler, Quabbin Park, MA, May 8, 2026

Cerulean Warbler, Quabbin Park, MA, May 8, 2026

Cerulean Warbler, Quabbin Park, MA, May 8, 2026

American Redstart, Quabbin Park, MA, May 7, 2026

Black and White Warbler, Quabbin Park, MA, May 7, 2026

Yellow rumped Warbler 'myrtle', Quabbin Park, MA, May 7, 2026

Blue winged Warbler, Quabbin Park, MA, May 7, 2026

Northern Yellow Warbler, Quabbin Park, MA, May 7, 2026

Ovenbird, Quabbin Park, MA, May 7, 2026

Blue winged Warbler, Ware, MA, May 7, 2026

Prairie Warbler, Covey WMA, Belchertown, MA, May 7, 2026

Yesterday started with some light rain just before dawn that thankfully quickly moved out.  Eventually it got sunnier and breezy.  Migration was stagnant overnight so I thought it would be a good time to hit some areas I have not as much as I would have liked the previous couple mornings when overnight migration was so good.  I stayed in the Ware and Quabbin Park area and I had some interesting sightings.  The first was an odd singing Blue winged Warbler (recordings and video in this list).  It would sing either a three or four part song, sounding a bit like a Golden winged Warbler.  I tracked it down and physically it looked exactly like a Blue winged Warbler should.  I have seen this multiple times before with Blue winged Warblers and most look like typical Blue winged Warblers.  The other big sighting was the return of at least one and possibly two Cerulean Warblers to Quabbin Park where they have started nesting again in the last few years.  The bird I did get to see did not have any bands (one was banded onsite as part of a Cerulean Warbler study last June and I got to assist...link here banding a Cerulean Warbler).  I have reached out to the biologist conducting the study and hopefully they will attempt to band the new male next week.  I ended the morning with another 20 warbler day.

Unusually plumaged Blue Winged Warbler plus two new warblers for the county this year

Blue winged Warbler with black forehead, Rail Trail, Amherst, MA, May 6, 2026

Blue winged Warbler with black forehead, Rail Trail, Amherst, MA, May 6, 2026

Blue winged Warbler with black forehead, Rail Trail, Amherst, MA, May 6, 2026

Brewster's Warbler, Rail Trail, Amherst, MA, May 6, 2026

Magnolia Warbler hover hunting, Rail Trail, Amherst, MA, May 6, 2026

Wilson's Warbler, Rail Trail, Amherst, MA, May 6, 2026

Black and White Warbler, Rail Trail, Amherst, MA, May 6, 2026

Prairie Warbler, Covey WMA, Belchertown, MA, May 6, 2026

Chestnut sided Warbler, Covey WMA, Belchertown, MA, May 6, 2026

Blue winged Warbler getting harassed by Ruby throated Hummingbird, Covey WMA, Belchertown, MA, May 6, 2026

After a banner day of birding yesterday that produced both Hooded Warbler and Canada Warbler for me for the year in the US today was slightly less productive but I still managed to find some good stuff including three new species for me in Hampshire County this year with Tennessee Warbler, Wilson's Warbler and Cape May Warbler.  I also relocated the Brewster's Warbler I originally found a couple days ago in Amherst plus Hooded Warbler in Hadley (I was once again unable to catch a glimspe but it did sing a bit)  One of the more interesting birds of the morning was a Blue winged Warbler with a black forehead.  I originally saw the individual a few days ago but thought the dark of the forehead was from being wet.  Better looks today seems to show an individual with black on the forehead and not some wetness on the feathers.  Beyond that plumage oddity the bird looked fine for a normal Blue winged Warbler.  After getting home and taking Wilson for a walk I headed over to Herman Covey WMA to check on some of the managed areas and had great counts of Prairie Warblers and Blue winged Warblers (plus loads of ticks...they are always bad there).  In addition I got to see some interesting behaviors with the warblers including watching a Magnolia Warbler hover hunt and a Blue winged Warbler getting harassed by a Ruby throated Hummingbird.  Today produced my first 20 warbler species day for the spring.

Hooded Warbler and Canada Warbler today add two more species for my US big warbler year

Black throated Blue Warbler, Rail Trail, Amherst, MA, May 5, 2026

Black and White Warbler, Rail Trail, Amherst, MA, May 5, 2026

American Redstart, Mitch's Way, Hadley, MA, May 5, 2026

Chestnut sided Warbler, Mitch's Way, Hadley, MA, May 5, 2026

Blue winged Warbler, Belchertown Land Trust Trail, Belchertown, MA, May 5, 2026

The day held lots of promise with the best night of migration in quite some time with south winds that were fairly strong and covered a large portion of the eastern US.  I was guiding for a visiting birder from India again today and we kept our plans fluid so we could follow up on any rare bird reports that came in during the morning.  I got a little birding in before meeting up for the morning of guiding and I could tell there had indeed been a good influx of species.  Our first stop was along the rail trail in Amherst and the forecasted strong winds were still light and the amount of bird song was high with multiple warblers even from the parking lot.  Not long after starting our walk I got a text letting me know of a Hooded Warbler in Hadley.  I decided to stick with covering the rail trail to see what else we could find before possibly heading south to try for the Hooded Warbler.  As we walked along the rail trail we turned up more and more warblers with a few showing quite well.  The best warbler for me on the walk was a Canada Warbler that sang from a deep tangle and as typical for the species, did not show at all.  Nonetheless it added another species for me for my big warbler year in the US and became species #42.  I will certainly catch up with more as the migration season continues on.  After about an hour and half along the rail trail and 14 species of warblers we headed south to try for the Hooded Warbler at Mitch's Way.  We made it through the traffic fairly easily and arrived just before eight and started walking in to the spot for the warbler.  Along the way we had lots of birds singing and calling including multiple species of warblers.  We made it to the spot and found Joe, Steve and Leslie on site and within a few minutes we heard the Hooded Warbler singing its classic song. Sometimes it sounded close and other times a distance away and it would go quiet for a time and then be heard again.  We tried to get looks at it but it never showed for us.  The Hooded Warbler became warbler species #43 for me in the US this year.  There were lots of other warblers around and the variety of song reminded me again why I love this area in spring (not so much in the colder months!).  We walked a bit further and ran across Ted (the finder of the Hooded Warbler) before returning to the Hooded Warbler spot.  The Hooded Warbler was still present and singing a non classic song and it yet again defied our efforts to get looks at it.  I had to settle on getting a few recordings before we headed out for the morning.  Mitch's Way produced an impressive 19 species of warbler for us and the morning ended with 20 species of warblers overall.  Sadly I didn't get pictures of either new warbler species for the year but I will hopefully get more chances in the near future.

Northern Parula, Home, Belchertown, MA, May 5, 2026

Northern Parula, Home, Belchertown, MA, May 5, 2026

Yellow rumped Warbler 'myrtle', Home, Belchertown, MA, May 5, 2026

American Redstart, Home, Belchertown, MA, May 5, 2026

Black and White Warbler, Home, Belchertown, MA, May 5, 2026

The water feature also produced three warbler species for the day with a capture of a Northern Parula, Black and White Warbler and American Redstart.  A Yellow rumped Warbler 'myrtle' also showed back up today.  This makes three warbler species so far at the water feature...a bit behind the total of ten warbler I have had in the yard for the year.

Brewster's Warbler back in Amherst for at least the third year

Brewster's Warbler, Rail Trail, Amherst, MA, May 3, 2026

Brewster's Warbler, Rail Trail, Amherst, MA, May 3, 2026

Brewster's Warbler, Rail Trail, Amherst, MA, May 3, 2026

Brewster's Warbler, Rail Trail, Amherst, MA, May 3, 2026

Brewster's Warbler, Rail Trail, Amherst, MA, May 3, 2026

Brewster's Warbler, Rail Trail, Amherst, MA, May 3, 2026

Brewster's Warbler, Rail Trail, Amherst, MA, May 3, 2026

A Brewster's Warbler (a hybrid between Blue winged Warbler and Golden winged Warbler) showed up in the same spot in Amherst for a third year in a row and possibly a fourth year.  With more north winds overnight I didn't expect to find too much this morning and was pleasantly surprised to see this bird back for another year.  It was cold with temps in the upper 30's and light winds that picked up as the morning wore on.  I started my morning in Hadley before moving to Amherst.  There were certainly some warblers around and it was still fairly easy to see most with the leaves still not out yet on many trees.  Once I got on the rail trail I heard a number of Blue winged Warbler songs and when I made it to the area where a Brewster's Warbler had occurred for the last couple years I made sure to get a good look at it the bird and it was the Brewster's Warbler.  The light was terrible for photos although with a little work was able to get some passable shots.  Now for some history on the the bird.  The individual showed up in 2024 on May 7 and stuck around through at least mid June.  Last year I relocated it on May 2nd in the same spot and it once again stayed around until nearly the end of June.  I could not find any definitive evidence of breeding during any of the years I watched it.  There is even a chance that this is the fourth year for the individual as I had a very similar in appearance bird along the rail trail in mid May of 2023.  That year it only stayed in the area a couple days and then was not reported again.  I figured it moved out of the area completely but in retrospect it probably didn't move far.  It appears this is the first Brewster's Warbler reported in the state this year.

The Brewster's Warbler doesn't add to my overall count of warbler species for my US big warbler year but seeing one (and hopefully other hybrids) certainly adds to the enjoyment of the quest.  No new warbler species for the day although a count of 14 species was not too bad considering the weather conditions.

The next few nights look to feature some good migration conditions with strong southerly winds and some warm temps.  I expect a big influx of warblers during the period before the weather turns less conducive for migration for multiple nights. 

Chestnut sided Warbler for species #41 for the year in the US

Chestnut sided Warbler, Quabbin Park, MA, May 2, 2026

Chestnut sided Warbler, Quabbin Park, MA, May 2, 2026

Chestnut sided Warbler, Quabbin Park, MA, May 2, 2026

Northern Yellow Warbler, Quabbin Park, MA, May 2, 2026

Pine Warbler collecting nest material, Quabbin Park, MA, May 2, 2026

Pine Warbler collecting nest material, Quabbin Park, MA, May 2, 2026

Although it was not a nice day as far as the weather was concerned with rain on and off and temps in the 40's and 50's I had to get out and see what I could find as it is early May after all.  I spent the morning around Quabbin Park as I dodged one bout of rain after another.  When the rain let up activity increased with multiple species around.  I had my highest total for the spring so far with 17 species of warblers in the park including my first Chestnut sided Warbler of the year (species #41 for the year in the US) plus my first American Redstart for the county this year.  Although many of the species are just arriving those that have been around for a few weeks are getting down to nesting and I had a Pine Warbler gathering nesting material.