Morrison has not been involved for three years but is holding onto the hope that he will be called up.
"Obviously the Irish scouts have been coming to a few of our games and it is up to me to start banging in the goals until the end of the season because we have got more qualifiers coming up in March and June," said Morrison to the CT.
"I am sure now that Keiren Westwood has been called up that Mr Trapattoni will have people at a lot of our games so I have to make sure that I am on top of my game every week now to impress them as well as my own manager."
"I am disappointed because I have been knocking on the door for the last few years."I didn't play for a while when Steve Staunton was manager because he didn't pick me.
"It was a case that he said he was going for younger players, which is fair enough, but I told him that you still need some experience but he said that's the way it was going.
"And at the time I wasn't doing that well at Palace and then the last season I had there I started doing well for them again.
"Then at the start of this season I didn't think I would get called up for the games they played because although I was doing well for Coventry the goals weren't coming.
"I am my biggest critic and admit when things aren't going well, but after that I scored 10 goals and think I have been doing well and my record stands up against the other strikers in the Irish squad.
"I am not saying I should be there and starting for Ireland but I still think I should be there or thereabouts in the squad. "But there's nothing that I can do about that at the moment.
"The gaffer has come out and said he thinks I should be there and I appreciate that because he's obviously backing me and can see that I am doing a good job."