It’s an interesting one! I haven’t taken any classes but would love to do at least an introductory one. The Great Courses has a good series on moral philosophy and I enjoyed the book How to be Perfect by Michael Schur (creator of The Good Place tv show).

That question in particular would be difficult for me to answer in a purely philosophical sense. I suppose we’d need to define what good/bad for the environment mean etc.

The birds are fed, is that good for the environment? The birds are part of the environment, so yes I guess so.

Are the birds being fed appropriate food? We’d have to ask the professor.

Are at least some of the birds invasive or causing some other trouble in the environment? Have to gather more information.

Perhaps by feeding the birds, they are not eating as much other food like insects, which can cause pest issues?

I like to think your professor would grade on both your questions and your answers. Do you remember many of the specifics in your answer or any feedback you got?

Virtues are human traits, like bravery, honesty, kindness etc

Moral laws tend to be more about specific actions, like “lying is wrong”, “it is good to give to charity”.

They might arrive in the same place, but take different routes. In addition, with the golden mean aspect of virtue ethics, applying moral laws too much can be bad.

For instance, deontology might feel is it is wrong to lie and good to tell the truth and those will be absolutely, categorically true. Golden mean would suggest that it is possible to tell the truth too much, perhaps if we are too forthcoming with it, or too blatant/tactless with it, or needlessly offensive. I’m not a scholar on this stuff, but that’s my best explanation!

Moral philosophy can be broadly divided into a few categories

Consequentialism - the idea that the morality of an action is determined by its consequences. For example, utilitarianism suggests that moral actions are the ones which produce the most happiness.

Deontology - the idea that there are moral laws, and that moral actions are those that follow the laws.

Virtue ethics - the idea that virtuous actions help us flourish and vicious (from vices) actions hinder us. There is also the concept that virtues exist in the middle (“golden mean”) of a scale between two vices, for example bravery is a virtue between the vices of cowardice and recklessness.

Pragmatism - the idea that there can be a moral progression of society and knowledge via study and inquiry. This is not so much a category of its own, but it’s compatible with the the main ones mentioned above.

On a personal note, I do not like consequentialism as a moral theory. I lean more towards pragmatic deontology but virtue ethics is also compelling.