Pelagornis stats are broken in game, from what i can tell the program is actually accurate and the in game stats reported go strange at times. It's especially apparent when raising babies and it often changes after a server restart.
A brand new baby will have incorrectly reported HP (too high), stam (too low), weight (too high), those are the ones I remember, the other stats may be wrong as well. After a server reset they will normally reset back to the correct stats that match it's parents. However the last lot of babies I raised ended up with the wrong stats again after 2-3 more server resets. Not sure if they are correct or wrong atm.
ARK Smart Breeding tool looks fine though.