Since 1991, seventy-five bird species have been captured on Mansfield. But we focus our efforts on six songbirds:
Bicknell’s Thrush (BITH) – Catharus bicknelli

Bicknell’s Thrush © Tom Rogers
Swainson’s Thrush (SWTH) – Catharus ustulatus

Swainson’s Thrush © Nathanial Sharp
Myrtle Warbler (MYWA) – Setophaga coronata coronata

Myrtle Warbler © Nathanial Sharp
Blackpoll Warbler (BLPW) – Setophaga striata

Blackpoll Warbler © Alden Wicker
White-Throated Sparrow (WTSP) – Zonotrichia albicollis

White-Throated Sparrow © Kathlin Simpkins, iNaturalist licensed under CC0
Slate-colored Junco (SCJU) – Junco hyemalis hyemalis

Slate-colored Junco © Nathanial Sharp