In the summer, humans are often troubled by mosquitoes: they are annoying and harmful, piercing our skin and stealing our blood almost always without our consent. Under normal circumstances, should a human do these things, we would consider it a crime. I believe that what humans hold as crimes are also undoubtedly immoral. However, female mosquitoes cannot accomplish their reproductive goals without stealing blood from those they prey on. So it seems to stealing blood is their duty, and they seem do not have a strong enough will (or one at all) to refuse it; hence this action looks more amoral than immoral.
Is my reasoning accurate?