What time to shoot shorebirds?

I just read the PPLS article on Bolsa Chica Ecological Reserve and was somewhat surprised to read "As is the nature of shorebirds, low tide is best for photographic opportunities". Now I've always been told and believed that high tide was best, because where I tend to go most, at low tide birds are scattered over thousands of hectares of exposed mudflat. As the tide comes in, birds feed in increasingly restricted area, and at high tide they congregate into large flocks. I know every site will have certain aspects which dictate the "best" times to shoot, but the impression I get from this article is that in general low tide is best. Can someone explain this to me? Is it just Bolsa Chica, or am I missing out on some great photographic opportunities? I can't imagine being able to even find a red-necked stint on 8500 ha of mud when there are probably only a few dozen out there. Even 10,000 godwits seem to disappear at low tide
Any thoughts and comments appreciated.

It depends is the answer. In some places, high tide pushes the birds closer to shore making it easier to photograph them in others low tide makes the water shallow enough for shorebirds so it just depends.

Thanks EJ. I thought "It depends" could be the only logical answer. I guess I was taking the quoted sentence too seriously.

Don't let the tide tables absolutely dictate your shooting. You may find fewer birds at an off time but that could make it easier to isolate them.

I'm sure the die hard bird photographers with behemoth lenses will add to this!

Dick makes a good point--My experience at Ft. Desoto has been that single birds or small groups are much less likely to fly off after being spooked.