Wow I haven't thought about that sketch since I saw it over 30 years ago. I definitely recall that fan and Grover yelling, "Herb!" as he was being blown across the screen.
The Ernie borrowing a vacuum cleaner from Herbert skit is a great one. I also liked the one where Grover is afraid of his shadow and Herbert educates him on what shadows are. Grover closes the skit with his classic line, "Oh I am so EMBARRASSED!" Then there's the one where Grover demonstrates for Herbert how he can count blocks. But he does not know how to count oranges! And the one where Grover gets his mouth stuck shut with peanut butter. Herb helps Grover but then it gets stuck again. Those are the Herb skits that are pretty clear in my memory.
A few others I recall somewhat are:
(1) Herbert has some cookies located in some kind of contraption he invented. He configured it so The Cookie Monster would have to do some things on order to get to the cookies. I think one thing involved a pulley. I think Cookie Monster eventually figured out what to do. In any case, I remember the ending. He said, "Monster think of better way to get cookies." Then he smashes the contraption. The camera then shows a perturbed Herbert. I recall the music too, but can't describe it by typing. It was four beats.
(2) I believe it was Grover that was with Herbert in this one. Grover was holding something like a weight that said help on it. But it was pretty heavy for him and he yelled, "Help!" Herbie comes on the scene and says, "You need help?" Grover says yes. So Herb gives him another weight that says help. Grover yells help again and Herb comes back and says, "You need more help?" and gives him a third weight that says help. I remember this happens until Grover is holding four weights. But I forgot what happens after that. I think maybe Grover fell down, but not sure.
(3) This one I hardly recall what happens at all. All I remember was Herbert was standing next to Grover and Grover wasn't ready to do what Herb wanted. So Herb was a little annoyed and frustrated and said, "Okay, we'll wait." I think this may have been a two part sketch.
Those are the Herbert Birdsfoot skits I can think of right now. There is also that one on the record where he sings the high, middle, low song with Ernie and Bert. On the show I think the song was done with three anything muppets.