The Gray Swallow often calls out in the early morning and evening hours. Its call is usually a high-pitched "Hi-Hi-Hi" with a short pause between each syllable. Female gray swallows also call like male birds, possibly to attract a mate or to declare their territory.
It should be noted that if the female gray swallows scream too frequently or unusually loudly, it may be that she is feeling uneasy or in a state of insecurity. Performance in danger. At this time, you need to pay attention to the surrounding environment and try to avoid frightening or disturbing the gray swallow bird, so as not to affect its health and survival. If the situation is serious, you can ask professionals or local animal protection organizations to handle it.
