Seems like this differentiation is a tricky one. All the guides mention various differences to focus on. Some guides seem to say the main clue is the whiter supercilium that widens as it goes behind the eye on the Louisians vs. the buffer, narrowing supercilium of the Northern.
Other guides say to judge by overall color of underparts--yellowish hues pointing to Northern.
Others mention the Louisiana's pinker legs and longer bill.
I can find evidence to support either!
This was Early February in the Dominican republic. The wintering range of both species.
Any help would give me some peace of mind.
Thanks!
Other guides say to judge by overall color of underparts--yellowish hues pointing to Northern.
Others mention the Louisiana's pinker legs and longer bill.
I can find evidence to support either!
This was Early February in the Dominican republic. The wintering range of both species.
Any help would give me some peace of mind.
Thanks!