airman13: The simple answer is, yes.
One would hazard a guess that there should be a statement in your Ops Manual / Part D that says something along the lines of:
"General:
Line Checks are a test of a Flight Crew member’s ability to perform a complete line operation satisfactorily, including pre-flight and post-flight procedures and use of the equipment provided, and an opportunity for an overall assessment of his ability to perform the duties required. The route chosen should be such as to give adequate representation of the scope of a pilot’s normal operations. The Line Check is not intended to determine competence on any particular route.
Objective of the Line Check:
Each Flight Crew member shall undergo a Line Check on the aeroplane to demonstrate his competence in carrying out normal line operations. Line Checks must establish the ability to perform satisfactorily a complete line operation including pre-flight and post-flight procedures and use of the equipment provided."
So, if a pilot can be rostered to conduct a ferry / delivery flight, that said flight can also be used for training and / or for checking. Whilst it might be called a ferry / delivery flight, it is really just a normal line flight, albeit maybe one devoid of passengers & cabin crew and over a route that is perhaps less familiar, but none of that significantly detracts from the purpose and content of a Line Check.