Mockingbird shaped, lighter chest, darker back, bigger, yellow beak Texas

Hello from Texas.
I have seen a few of these in the past months.
They make strange noises and knocking sounds.
Normally hard to find where the noise is from, they stay hidden in the trees. One finally ended up in the garage so I got a grainy picture. Shaped similarly to a mocking bird, but bigger overall with a darker back lighter chest and larger beak with yellow coloration. The tail is very white on the under side whith dark bands.