Horn Pond Mountain, Woburn, Field Trip 2026-05-10

[Peter Loshin]

We met this morning at 10:00 at the traditional Horn Pond Mountain parking spot. It was about 70 degrees and mostly cloudy when we started, but by about 11:00 the sky cleared and we saw:

3 Juniper Hairstreak

15 Duskywing (mostly Juvenal's, but possibly at least one Wild Indigo)

1 Lady (sp) flyby

1 Lady (sp) caterpillar on pussytoes

1 Tiger Swallowtail (sp) flyby

7 Azure (sp; probably mostly Spring, but possibly 1 or more Summer)

1 American Copper

1 Gray Hairstreak

2 Eastern Pine Elfin

2 Cabbage White

1 Sulphur (sp)

10 species, 35 individuals

There were 14 of us when we started, including David, a dad with his son and daughter from NH; Steve Lewis, a club member from Connecticut; Jeanne, Chris, Andy and Jordan, a family of four adults from Arlington; Andrew and Lauren Griffith; Mike Gordon; Paul Seaman; Lisa Wolfe and me. We were joined at the top of the hill by Judd and Amy, a couple from New Hampshire who came to Woburn specifically looking for Juniper Hairstreaks.

Most of our party had never seen a Juniper Hairstreak, and the ones we saw were very accommodating to being seen and photographed. It was very satisfying to see the reactions to seeing these butterflies for the first time.

Lisa and the other Arlington family had to leave early, but Lisa spotted the Sulphur as they left.  David had to leave shortly afterward. The rest of us continued to look around until about 1:30, when the clouds started to come back.

Peter Loshin

[Peter Loshin]

I forgot to add, we also saw some other creatues, including:

5+ Yellow-washed Metarranthis Moth (they fly and look almost like elfins)

1 American Toad

2+ Prairie Warbler

1 Song Sparrow

1 Indigo Bunting

1 Eastern Bluebird

Peter Loshin