Apex domains cannot have CNAME records.
Question and response
Question
dig owenbird.com. NS
Answer
owenbird.com. 4 NS starrunner.starcon.com.
owenbird.com. 4 NS alkaid.starcon.com.
owenbird.com. 4 NS antares.starcon.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0