There was a discussion about crab apples in which Malus fusca was mentioned as one of the species that will hold it's fruits into winter to serve as bird food. Here is a source: www.beaverlakenursery.com
-Lon Rombough
Grapes, writing, consulting, my book, The Grape Grower, at http://www.bunchgrapes.com Winner of the Garden Writers Association "Best Talent in Writing" award for 2003.
For even more grape lessons, go to http://www.grapeschool.com
For all other things grape, http://www.vitisearch.com