Mayor Bloomberg is giving a boost to Councilman Simcha Felder’s efforts to ban people from feeding pigeons. “My recollection when I came into office, there was a ferret issue, which I very cleverly and tactfully avoided,” the mayor said yesterday, referring to Mayor Giuliani’s efforts to ban the pet rodent. “While I love animals and I love birds, we do have a lot of pigeons and they do tend to foul a lot of our areas and people would be better off not feeding the pigeons. Those that are here will find food and they just won’t grow at such a rapid rate — we’ll all probably be better off.”