It was noticably different from a skylark. In flight it looked slightly larger with broader, more rounded wings and a buff underside. Once we got good views of it on the deck we could finally see why it's called a CRESTED Lark but unfortunately it was just too far away for the SLR.
This was the biggest twitch I'd been on. It was pretty manic at times as birders actually sprinted to wherever the Lark decided to land next! Life list = 233