This is a physically stressful time for them, so they will often just sit quietly on their perch to save energy. Drafts from open or improperly sealed windows. Let your bird watch the outside show only under supervision or keep him back a ways from the window and let him watch from a distance. Yes, with a few exceptions. A balanced diet of a quality seed mix such as Abba Parrot or pellet diet such as Pretty Bird or ZuPreem, along with these human foods, will be healthy and beneficial to your parrot.
Parrots do well in temperatures that are comfortable for people.
Normal temperatures of 68-74 degrees F are very good for your bird. Avoid extreme fluctuations in temperature and drafts, and your bird will be comfortable. They are available in many variations including wood, bamboo, and wicker. Put in a couple different types to give them a choice. If there is more than one pair in a cage, make sure there are more nests than there are pairs to reduce or prevent fighting.