June 1st Bugs

Out and about today. The plan was to start at Dunback hoping for late migrants and then go look for odes and stuff. Turns out there weren’t any late migrants but the butterflies at Dunback were good, so the whole day was for bugs.

Starting at Dunback, lots of Pearl Crescents, a few Little Wood Satyrs, and a baskettail or two. Looking for birds, I did hear a cuckoo but never found it. Finally double-checked the songs just now and it’s a FOY Yellow-billed (which appears to be my first in Lexington(?!). Down to the left, Willow Flycatchers were calling, also new for the year. Otherwise, there wasn’t much.

Way down at Blossomcrest, I found a neat bee mimic. It appears to be Merodon equestris:

Fly

Back at the intersection, a small skipper attracted my attention. It was dark and didn’t ring any bells. Unfortunately, it would land and instantly spread its wings, so I never got a good look at the underside. I snapped a few photos and with those was able to ID it as a Pepper-and-salt (looks better with the -‘s to me). Interestingly, reviewing my pile of unknown skipper photos, I found another one from Dunback from 2005.

Pepper-and-salt

Pepper-and-salt

Pepper-and-salt

So I sort of did get a bit of underside there, but not quite.

After a stop at home, I headed out to the Littleton Rookery. I was hoping for similar results to last year, but no such luck. Along the tracks was very little. One sprite (probably Sedge but it got away), a few forktails, a few baskettails, and a Pine Elfin was about it. At the rookery, I enjoyed watching several nests for a couple minutes, noting how grown the young were. Turning my attention to the bugs, it started slow. A teneral whiteface popped up and then a Common Green Darner. The sun was going in and out, but once it came out for a few minutes, it picked up a bit. Lots of Four-spotted Skimmers, including several ovipositing, a few Dot-tailed Whitefaces, and a few damsels. One was a very teneral spreadwing, that I called Swamp on size. There were a couple female bluets, I’d guess Marsh but can’t say for sure. And one of the things I wanted, a tandem pair of Aurora Damsels. Just yesterday, Nick Donnelly posted a request for high quality pictures of pairs in order to understand how all the appendages fit together. High quality may not be what I got, but it’s a start (I did put the close-focus filter on but they flew off before I could work in closer).

Tandem Damsels

Heading back out, I started to check the wet spot on the opposite side of the tracks, but it clouded up. Back in the open, it looked really dark and potentially stormy, so I moved faster. Being cloudy, there wasn’t much out. Bluebirds at the car were nice. I sat around eating for a few minutes and it became clear that the clouds were moving through. I headed to Fort Pond Brook and decided to find the south entrance as that would take a little longer and get me further from the clouds.

It was pretty much clear by the time I arrived and bugs were back out. In the shaded section, lots of Ebony Jewelwings and a few Little Wood Satyrs were buzzing back and forth. Out in the open, I found my first Lancet Clubtails and a nice Tiger Beetle, which turned out to be Cicindela scutellaris lecontei, which I’d only seen once before.

Festive

Also in the area was an interesting moth. It appears to be in genus Drasteria but I haven’t gotten a firm ID yet. It’s clearly an underwing relative, whatever it is.

Moth

Moth

Still in the sandy section, I started seeing a few elfins. Once one finally landed, I could see it was a Frosted and not the Henry’s I had seen here last month. They turned out to be more distinct than the books made them look. With last weekend’s Hessel’s, 32 regulars to go or so.

Frosted

In the more wooded area, the clubtails were all over, including several mating pairs.

Mating Lancets

Lots of other odes including many baskettails, a couple bluets that appear to be female Turquoise, several dancers (presuming Variable), and lots of Jewelwings including my first River of the year. Butterflies included a bunch of duskywings (all large, so assuming Juvenal’s), a Spicebush Swallowtail, and a couple Azures. And another Pepper-and-salt!

Pepper-and-salt #2

That one showed the underside nicely. All the way down by route 2, I didn’t find much and it started clouding up again so I started back instead of working my way along the brook. On the way up, I found my first Hobomok and Dusted Skippers of the year. Further on, I enjoyed a Mourning Cloak chasing a Spicebush Swallowtail, especially when the patrolling baskettail joined the chase. The open area wasn’t terribly exciting, although Brown Thrasher was nice.

I decided to make one more stop at the St. Anne’s Fields in Lincoln. Starting across the street, I spent a bit of time chasing Pearl Crescents trying to make them into something better. No luck with that, but a Snowberry Clearwing posed perfectly.

Snowberry

Crossing over to the St. Anne’s Fields, I found lots of Common Ringlets, more crescents, and not much else. A Cooper’s Hawk being chased off by 15 grackles was nice, especially after seeing similar with a Red-tail at Horn Pond last weekend. The sun was mostly in, so rather than push my luck, I headed home.

Quiz 9 Answer

This week we have a bird that’s clearly on the small side. It’s mostly gray but has a reddish patch on the wings and some streaking. With the streaking, sparrows are about the only things that come to mind. Of the larks and pipits and other possibilities, they’re all a little thinner, so a sparrow it is.

With the reddish patch and overall gray color, there aren’t many sparrows that are possible. In fact, the only one is Swamp Sparrow, which is what this bird is. In Waltham, Swamp Sparrows appear to breed at the marsh in Met State and possibly at a couple other marshes. They’re also fairly common migrants, especially in fields, but occasionally elsewhere. This was one of the elsewhere ones, as it was in the wooded section of Beaver Brook.

May Azures

In addition to all the other highlights at Met State, I had a bunch of Azures (Celastrina sp.). Most appeared to be the recently described Cherry Gall (C. serotina) but one looked a little different. The best part was one basking with its wings open, something they almost never do. I missed my first chance to get some shots and lost track of it as it flew down the path. Luckily, after photographing the questionable one, the other returned and again opened his wings, allowing me several shots!

Here’s a couple shots of that guy:

Ventral:

Azure

Dorsal

Open-winged Azure

And the odd one:

Azure

Note that the wing is slightly damaged, so you can see a bit of the upperside. Is this one a late ladon or another serotina? It seems a bit dirtier than the others.

As a reminder that you can click on any photo and then click the “All Sizes” button to get a slightly larger view.

May Highlights

Absolutely spectacular weekend.

After the Cerulean Thursday and lots of good stuff not refinding it Friday, Saturday started out cloudy. Between it being dark and with a chance of rain still, I left the camera at home. I headed to the Arlington Reservoir, hoping for good swallows and other migrants. Lots of birds around, but not necessarily what I had hoped for. Two Scarlet Tanagers were nice, as were the boatload of sandpipers, including 2 Lesser Yellowlegs, several Solitary and Spotted Sandpipers, and about 20 Least Sandpipers. I did find my first Bank Swallows of the year but couldn’t find any Cliff and numbers were on the low side. Warblers were limited with a few singing near the bridge but nothing too exciting.

After the res, I decided to walk along the Mystic Lakes. Almost immediately upon arrival, I found more warblers in the small wood lot than there were all along the res. Lots of Yellow-rumps, Yellow, Black-and-white, Parulas, and others. I spent a few minutes tracking down an odd song and got a quick look at what I thought was a Cape May. I moved for an angle with better light but lost the bird. Backtracking, I did get a nice male Black-throated Blue but still couldn’t find the singer. I circled around a bit and suddenly there was a male Cape May Warbler hopping around right at eye level! I was able to study it for a few minutes before it moved back up to the treetops.

There was another odd song in the area that I started to track down. Unfortunately I only saw it as it was chased away by another warbler. I started wandering down the path and quickly saw my first Black-crowned Night-Heron of the year. There were more warblers and a Blue-headed Vireo by the boat club but nothing unusual. Down at Sandy Beach, I added gnatcatchers, a Solitary Sandpiper, and Savannah Sparrows but couldn’t find a Pine Warbler. Continuing along the path that ends near Wellington Station, I added an American Redstart (a very nice adult male) and a first-year male Orchard Oriole. There were also lots of Yellow Warblers, some singing slightly odd songs.

It was a quick walk back, only stopping for Cedar Waxwings and an Osprey. I checked for the screech-owls that had been reported along the way, but didn’t remember the directions correctly and didn’t find the spot. Back at the wood lot, I finally tracked down the oddball. I had thought it sounded vaguely like a Prairie, but it turned out to just be a Northern Parula. That proved handy to know Sunday.

So on Sunday morning, I headed to Met State to bump up the Field Sparrow to probable breeder (the one that I skipped on Thursday and found the Cerulean instead). I started going straight up the hill. Lots of song including Ovenbird, Rose-breasted Grosbeak, and 3 species of woodpeckers. The warblers were loud but not cooperating at first.

At the top of the hill, I immediately found a singing Nashville and then a very nice Rose-breasted Grosbeak:

Grosbeak

I heard the Field Sparrow pretty quickly, so that’s now probable with code S (singing for more than 7 days). However, today it was joined by a Blue-winged Warbler and two Indigo Buntings!

Indigo

The warblers cooperated as I worked my way town the trail. I’m not quite sure how many as some seemed to be following me but I had Magnolia, Black-and-white, Parula, Black-throated Green, lots of Yellow-rumps, and a late Palm along the way.

Black-and-white

BT Green

There was also a pheasant calling and when I poked along a side trail, I did hear a Prairie. A new bird for Waltham and another likely breeder at the spot. Guess I wasn’t thorough last year.

Eventually, I reached the base of the hill where a Wood Thrush dropped onto the trail to feed. It was fairly distant, but I lucked into getting a good shot as it flew off:

Flying Wood Thrush

I checked the spot just to the right with the downed utility poles. More of the same warblers with the addition of a first-year male Redstart. But the big surprise was a Purple Finch. It was female-plumaged but after seeing it I realized I may have been hearing one sing, so it could have still been a first year male (they’re not easily separable until their 2nd October according to Pyle).

Back along the cemetery, one tree was loaded with Yellow-rumps, a Parula, and a Black-and-white or two. Just before the wet spot was my first American Lady of the year.

Lady

In the wet spot I found the expected Solitary Sandpiper but there wasn’t anything above. I wandered in the direction of Rock Meadow.

Crossing the bridge, I quickly added Common Yellowthroat and Yellow Warbler and then had an Eastern Towhee. Tree Swallows were all over, often landing on piles of wood chips. Circling the garden, I had a Brown Thrasher singing and then one carrying a large stick. An Eastern Bluebird was hanging around the furthest two boxes. At first, I thought it was likely nesting in the right one, but when two Tree Swallows came towards the left, it hopped over there, so I’m not sure now.

Circling the rest of Rock Meadow didn’t add much, so back to Met State to look for owls. On the way I ran into the Bakers, who had another pair of Rose-breasted Grosbeaks. I sent them in the direction of all the warblers and then worked my way towards the presumed owl nesting area. No luck with that, but more grosbeaks, ovenbirds, another wood thrush, and similar. A couple Juvenal’s Duskywings were out as well.

After wandering down to the field and back up I heard a Brown Thrasher and spent a few minutes trying to find him without any luck. Several Azures were flying around here, including one that was basking with wings open (post upcoming on these).

I worked my way back, adding even more Rose-breasted Grosbeaks and not much else. A quick stop at Beaver Brook didn’t come up with a Cerulean Warbler or White-eyed Vireo (or anything new on the day) but it was an excellent morning.

Quiz 8 Answer

Quiz 8

So we have some interesting looking insect. It’s got a very round body with some black on light brown, long legs, and wings with lots of black along the front. It’s on an oak leaf, so we can see that it’s fairly small but not a tiny insect.

Although there’s quite a few insects that look somewhat like this, I’m not about to go through them all. This is a Bee Fly in the family Bombyliidae. With about 800 species in North America, there’s a lot to filter through. Fortunately this one has a very distinct wing pattern. It’s the Greater Bee Fly (Bombylius major).

These happen to be extremely common in early spring around here. For more information, see bugguide.

Cerulean

I headed out at lunchtime today planning on going to Met State and bumping Field Sparrow up to probable breeder (7 days singing) but as I started down the Access Road I remembered the work being done on Trapelo right at the end of Forest St. yesterday. It was enough of a pain that I decided to head to Beaver Brook instead. That turned out to be a very good decision.

I had a sandwich for lunch, so after parking I assembled it and got out to walk around as I ate. Almost immediately, I heard an unfamiliar warbler song. I walked a little closer and began looking for the bird. It wasn’t easy as there were a lot of birds around. I must have sifted through 10 yellow-rumps before I thought I had it located. The bird then turned slightly I saw the spectacles of a Blue-headed Vireo, so apparently not. A Northern Parula was another false alarm, but the Indigo Bunting wasn’t.

Finally, I got on another warbler. White belly with a few streaks, white throat with a very little bit of a necklace. And the song clicked. Cerulean! Although among my most-wanted birds for the county and one I was hoping to find this spring, this wasn’t when and where I expected it.

The bird moved a little and even with it singing constantly, it was not easy to see. Eventually it moved down the path into the woods a bit. I followed, almost gave up and moved on, but then waited a bit and finally got some views of the head and back. Seeing that the only other Cerulean I’ve seen was at the top of a tree at Skinner State Park, this was the first chance I’ve had to really study the bird. The light was very poor, but I won’t complain.

The bird eventually returned to the tree it started in, at which point a noisy dogwalker came through and I headed back to work. I quickly sent out a post about it and got a very nice reply from Marj in just over 3 minutes:

!!!!!!!

That said it all.

After work, I ran back over to show it off to my parents. It wasn’t cooperating, staying silent (although others had it before and after we were there). We did have some consolation with a gnatcatcher, Red-breasted Nuthatch(!), a few other warblers, and more orioles than we could keep track of.

So I’ve finally gotten all the regular warblers in Middlesex County. Without figuring out an exact count, I’d also say it’s now less than 20 birds that occur yearly that I have yet to find. Come on goshawk!

Starting the Season

Today was a day spent wandering. I started off at work, hoping to refind and photograph the interesting swallow I had yesterday (which would have made a great WTOW quiz), but no luck. Then it was on to Lincoln to check out parking and access for next weekend’s Menotomy trip. It was fairly quiet and the bridge is still out, so we’ll have to drive around. This Savannah Sparrow did pose nicely at least:

Savannah Sparrow

After checking Farm Meadow and the bridge, I headed to Oxbow NWR, taking the slow route out 117. That turned out to be a good move as I spotted an egret just past Mt. Misery. After swinging back around, I was able to confirm it as a Great, my first spring one in the county. Unfortunately, it took off before I got photos, but did land in the river up ahead (now can I count it for Concord as well?).

And on to Oxbow. It was on the late side for birds, and was a bit cool and not quite sunny enough for bugs, so not great. Still got my first-of-year Purple Finch and Blue-headed Vireo and had a few turkey run by. No luck on any Boghaunters (pdf) and not much in butterflies. A few Spring Azures and a few Elfins, all of which appeared to be Eastern Pine were it. I did have one uncooperative Tiger Beetle down at the far pond and lots of bees and flies and wasps. Some did pose a bit:

Pine Elfin:

Eastern Pine Elfin

One of the Looper Moths:

Looper

This bee dug a whole a disappeared:

Bee diggingBee DiggingBee Digging

A couple flies:

Fly #1

Fly #2

On the way out, I ran into Erik Nielsen. He didn’t have much more, but did have a Henry’s Elfin (and as I found out later, 2 Ringed Boghaunters). It cleared up and warmed up a bit, but I was almost back to the car before it was really nice. I headed out and decided to stop at Fort Pond Brook.

At Fort Pond Brook, I headed up the hill and almost as soon as it cleared I started seeing Elfins. The first couple got away, but the next six all turned out to be Henry’s! I had only seen a single individual (happened to be here) in the past, so I enjoyed being able to study the variation.

Henry's #1
Henry's #2
Henry's #3

I continued on, finding a few Azures and a Pine Elfin but not much else. Looping back, I saw something a bit larger land, which turned out to be my first dragonfly of the year. I’m fairly sure it’s a Beaverpond Baskettail, but it’s nice to be seeing them again certain or not.

Baskettail

I tried some of the trails along the river, hoping for more odes. No luck with that, but another Henry’s Elfin showed up. I tried to get out to the marshy area, but decided it was too wet and overgrown at the moment and headed back towards the car. On the way, a Hooded Merganser popped up and started flying around in circles, a nice potential breeder.

Not a bad day at all, even if I had hoped for a bit more.