Taarabt looked impressive when he came off the bench during the 3-2 defeat to Aston Villa last weekend.
When asked about the midfielder's contribution at Upton Park, Bircham said: "It was a great goal from Adel. You'll always get that from him, he's always there wanting the ball.
"Sometimes he tries a lot of hard balls which might not always come off but then he'll have that one bit of magic that does work.
"You see when he came on Saturday he played so well for the first team so hopefully we'll start seeing the best of him again."