One questions that seem to come up quite often with RSS feeds and WordPress is: How do I change the number of items listed in the RSS feed?
In some instances, you may want to pull more than just a few post entries from a WordPress feed. Most often this occurs when setting up a new feed and you want to pull more history than just a few weeks or months. The issue also arises with very high-traffic blog where the default setting of 5 just outpaces most readers and certainly the BlogHawk RSS Reader.
You can easily change the setting by navigating to the following area in the admin tool panel.
Settings -> Reading -> Syndication feeds show the most recent
If you are using BlogHawk or some other reader for the first time, you may consider setting this value to a number greater than the number of posts on the site and then backing it off after your first crawl/read has been finished. Keep in mind that you will most likely have to set it back to the original setting as systems like FeedBurner only accept up to a set RSS Size.