By balsama, 2 May, 2026

As one birder put it:

The warblers weren't really around, but the rest of the birds were!

The first rainy Big Day Boston saw a bit of everything. Quick stats: 74 registered teams, 36 submitted checklists, 70 species observed, and 49 species on the winning checklist.

By balsama, 3 May, 2025

What a day!

74 registered teams and individuals, 76 species seen, 51 species on the winning checklist, 32 checklists submitted, and 84℉ high temperature!

And the winner is...

Patrick Fellion with a whopping 51 species!

Absolutely crushing the previous record (37), Patrick was one of three birders who spotted the Louisiana Waterthrush in the Public Garden; but he said his favorite species is a Chestnut-sided Warbler which eluded him today.

By balsama, 4 May, 2024

Big Day Boston 2024 is in the books! What a great day. The weather cooperated, a variety of Warblers were in town, 30+ t-shirts were made, and everyone had a splendid time!

By balsama, 9 May, 2023

Big Day Boston 2023 is in the books! We had 113 participants from (at least) five states and collectively observed over 78 species - all within the confines of Downtown Boston.

And the winner is... Massachusetts-based birder Ingrid Messbauer!

Big Day Boston is the annual spring Boston birding competition. Participants will compete to spot the largest number of different species of birds in a single day without leaving the Downtown Boston neighborhoods.