I don't think Love is a better rebounder than Bird.
Bird averaged a double-double for his career from the SF spot, and did it next to two HOF 7-footers. Love is a PF. Big difference.
And passing? Love has never had a double-digit assist game.
There just is no comparison to the Legend.
For his career, Love is averaging an exceptional 21.5 TR%. Last year, Love was at nearly 24%. Three players in NBA history had a better single season rebounding: Dennis Rodman, Jayson Williams, and Danny Fortson - all while, by the way, having a partial offensive game from the perimeter.
The 21.5 TR% - would, if he was eligible and if it career over a period of time, would put him as one of the greatest rebounders of all time - all while maintaining a perimeter game. That is truly exceptional rebounding.
Look, is Love Bird? Of course not. But there are similarities that go beyond the color of skin - the shooting, scoring in general and rebounding. Love is not nearly the passer or defender that Bird was (although I would argue that Larry wasn't exactly a stalwart defensively - good, not great).
Love is certainly closer to Bird than Dirk.