I know exactly what you mean. Noisy -- yes. Adorable, more yes. I always go with absolutely no intention of feeding them. If I want begging, I'll stay home and feed the dogs.
They get me every time. Especially the babies. They are professional beggars. They wait until you start walking away, and they start that barking/whining/pleading thing they do. I am such a sucker for feeding them. I think they know it too. "Look guys, here comes sucker lady. She can't say no." No willpower at all and proud of it.