How to keep your pets healthy<br>Consult with your pet's veterinarian concerning diets. Every pet needs to be well taken care of and the most important thing is to ensure that they have a proper diet. You might see yourself feeding a dog once a day, while birds and rabbits should always be provided with a fresh container of food and water at all times.
You should replace your bird's food container hourly.
The context only says to give birds a fresh container "at all times". It does not indicate when exactly you should top up the container; so it could be within the hour or every three hours, etc.
( z1 recommend :ARG1 ( z2 replace :ARG0 ( z3 you ) :ARG1 ( z4 container :purpose ( z5 food ) :poss ( z6 bird :poss z3 ) ) :frequency ( z7 rate-entity :ARG3 ( z8 temporal-quantity :quant 1 :unit ( z9 hour ) ) ) ) )