In the Sibley Guide to Birds I wrote that Western and Clark’s Grebes are “incapable of walking”. I thought they could only push themselves along on their bellies, but I should have known that I was flirting with danger by writing such an absolute statement. Soon after the book was published I heard that they are capable of walking, although they do it rarely and it’s not very easy for them.
Now Larry Engles has emailed me with a really nice series of photos confirming that Western Grebe can walk. One photo is here, and you can see the rest of the series at Larry’s website.