John Heinz National Wildlife Refuge
Z5 + 100-400mm f/4.5-5.6 + 2x @ 800mm, ISO 1400, 1/1000, f/11
John Heinz National Wildlife Refuge
Z5 + 100-400mm f/4.5-5.6 + 2x @ 800mm, ISO 1800, 1/1000, f/11
All About Birds↗ | Audubon↗ | eBird↗
"Tree swallows can form flocks numbering in the hundreds of thousands" according to the Wingspan card
John Heinz National Wildlife Refuge
Z5 + 100-400mm f/4.5-5.6 + 2x @ 800mm, ISO 1400, 1/1000, f/11
John Heinz National Wildlife Refuge
Z5 + 100-400mm f/4.5-5.6 + 2x @ 800mm, ISO 1800, 1/1000, f/11