Few people had ever heard of a hornbill before the Disney movie "The Lion King." Zazu has made this bird easily recognizable. One fun fact about hornbills is that nesting females will seal themselves into an opening, leaving a small hole just large enough for the males to insert food to them, protecting their eggs. Hornbills mate for life, which can be 20 years. Posters of hornbills are a welcome addition to any bird collection.