security of RSS readers

Would a site or blog owner know who is reading their site if the visitor is reading it with an RSS reader? Can they get the IP of the person? Say I had a Netvibes account with RSS feeds, can the site owner know which IP or RSS reader is viewing their feeds? If they have trackers or codes on their site or blog, can they tell who is reading their site via RSS feeds? And would the images from their site I view in the RSS reader act in a way as remote images in emails which can expose a person's IP? All this talk lately about webrtc got me thinking.