I have a male and female cayuga/pekin mix. Lately my female Lucy is always opening and closing her beak. Is this normal or should I be concerned about something being stuck in her throat? Other than the opening and closing she seems to be acting normal. She's eating and drinking just fine. She's not overly fond of people so i can't really get close to her without totally freaking her out so before i traumatized her with chasing her down and grabbing her, i want to see if it was a normal behavior. She is a year old.