What do we say in Birkot Hashachar
Birkot Hashachar are the morning blessings at the start of Shacharit. In the siddur they have their own URL inside Shacharit. Shacharit begins with the morning blessings, before Pesukei Dezimra. The wording varies slightly by custom, but the overall sequence is similar. You can open the morning-blessings section directly in the digital siddur.
Are they part of Shacharit?
Yes. They are the first section of Shacharit.