Dried chipotle peppers, dried cascabel chiles and unsalted pumpkin seeds are available at Latin American markets and health food stores.
Any leftover chipotle paste can be refrigerated, covered, and used as a hot seasoning. It will keep for at least three weeks.
The added spice and heat that the chiles give this bird point toward an equally assertive red, but one with some fruitiness for balance. A California Zinfandel would be just the ticket. Alternatively, soften the southwestern bite with a fruity California ros&é.