Bohaiornithidae of sexual dimorphism, with the feathers being used by male members of a species for courtship display. A subadult specimen of an indeterminate bohaiornithid described in 2017 preserved feathers on various parts of the head and body which were analyzed and determined to have been iridescent in life. A referred adult specimen of "Bohaiornis" was preserved with a several rocks concentrated in the stomach region. Rocks in the stomach of birds and other animals are often believed to be gastroliths swallowed to assist in the digestion of plant material. However, the rocks apparently swallowed by this specimen are much larger,
Given name Chinese, Singapore, and Vietnam, among others), as well as in Southern and North-Eastern parts of India, and in Hungary. This order is common also in Austria and Bavaria, and in France, Belgium, Greece and Italy, possibly because of the influence of bureaucracy, which commonly puts the family name before the given name. In China and Korea, part of the given name may be shared among all members of a given generation within a family and extended family or families, in order to differentiate those generations from other generations. The order "given name – father's family name – mother's family name"