use

[dido4]

1.Are these two(use) right?

a. The black-faced spoonspills can use their bills to catch fish easily.

b. I want to use my eyes to watch black-faced spoonspills.

2. Or have to rewrite like these:

a. The black-faced spoonspills can catch fish easily with their bills.

b. I would like to watch black-faced spoonspills with my own eyes.

Thank you.

[Tdol]

a- fine
b- weird- what else would you use? It doesn't sound very natural to me.
2a fine
2b fine