Answer:
The answer are the words "stalk and defenseless."
Explanation:
The words that make it obvious how the author feels about the birds are stalk and defenseless because the author is describing how the fish in the lake fall victim to the birds. It seems the author does not like the birds for their instinct to stalk their prey by watching the fish in the lake closely. The author seems dismayed that it would only take the ospreys a moment to catch the fish who have no way to defend themselves against the birds.
Meaning by that they are the lords/guardians sons or daughters of the time being.
Careful is already a adjective so keep that.
There are many adjectives for change but what suits the best here is “changing”.
Careful changing is the best I could find.
Hope that helped
This means that actaually knowing what you are going to do is needed to channel the will to do something, and both of those things are needed to complete a task. Hope this helps.