What is the purpose of a spray-type water bottle in falconry?

The primary purpose of a spray-type water bottle in falconry is to cool down an overheated raptor. Raptors can become overheated, especially during hot weather or after strenuous activity, and using a spray bottle allows for a fine mist of water to be applied to the bird's feathers. This not only helps to cool the bird efficiently through evaporation but also assists in keeping its feathers in good condition. Cooling the bird is crucial for its health and wellbeing, as overheating can lead to serious complications.

The other options do not align with the primary function of the spray bottle. While cleaning feathers may be part of a raptor's maintenance, specific regimes and tools beyond a spray bottle are generally used for that task. Teaching commands typically involves other training methods and tools, while storing food is generally managed through specialized containers designed to keep the food fresh and accessible, rather than a spray bottle.