Exitus In Dubio Est

Here is today's emblem and distich by Joachim Camerarius, 3:32. As Camerarius explains in the essay, you would expect the hawk would be able to defeat the heron, but if the heron attempts to drop excrement onto the hawk, making it unable to fly. The hawk in turn is aware of this and seeks to attack the heron from above. Hence the dubious outcome as the two struggle with one another.

Sunt dubii eventus incertaque proelia Martis:
Vincitur haud raro, qui prope victor erat.

The vocabulary is keyed to the DCC Latin Vocabulary list. There are three words which are not on the DCC list:

incertus -a -um - uncertain, unsure, unreliable
Mars, Martis m. - Mars (Ares), god of war, war
ēventus, ēventūs m. - event, accident, result

dubius -a -um: doubtful, sine dubiō, without a doubt, certainly
haud: not
proelium -ī n.: battle
prope: near, next; (comp.) propior, (superl.) proximus; (adv.) propē, nearly, almost
que (enclitic) - and
qui quae quod: who, which, what / quis quid: who? what? which?
rarus -a -um: wide apart, loose, thin; rare, seldom
sum, esse, fuī: be, exist
victor -ōris m.: conqueror
vincō vincere vīcī victum: conquer