"Peacocks do not fly."
Translation:मोर नहीं उड़ते ।
This statement is not actually true FYI. Peafowl can and do fly, just not far. They can fly up into a tree or onto a roof top and cross a field.
Yes , but not all the time .There is no rule in hindi to do so and even it could be more familiar if you add हैं in this sentence.