A counter-feeding order very often creates phonological opacity.
2.
A good example of feeding order can be seen in English, where preglottalization can be considered as rule B . As a consequence of this rule, all voiceless plosives which make part of a word-final consonant cluster are glottalized.
3.
This determinant of feeding order ( or lack of it ) " has been described " for a mixture of sea and land based birds feeding on carrion and seems to be valid in the case of vultures specialised for eating specific parts of a dead animal ( I enjoyed the bit in the first article on how a bird was more interested in defending his territory than in actually eating the fish ).