no photo — written note
Birds
The commonest diving duck on Indiana reservoirs, forming rafts of hundreds.
Field facts
HabitatReservoirs, large lakes
RangeStatewide on migration
When to lookOctober to April
StatusLeast Concern; declining (Indiana DNR / IUCN Red List)
Look-alikesGreater scaup — rounder head, commoner on Lake Michigan
Field note: Its purple-glossed head can look green in poor light.
Lesson
Watching responsibly
Scope rafts from shore rather than pushing them off open water.
Your records
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