Birds, like many animals, do have the ability to hear both noises and people's voices. They possess a well-developed sense of hearing that allows them to perceive a wide range of sounds, including vocalizations from other birds, human voices, and various environmental noises.
However, there are a few factors to consider when it comes to how birds perceive human voices:
Frequency Range: Birds, like other animals, have specific frequency ranges in which they are most sensitive to sound. While some bird species can hear sounds within the human vocal range (approximately 85 Hz to 255 Hz for adult males and 165 Hz to 255 Hz for adult females), others may not be as sensitive to frequencies in this range. Birds have diverse hearing abilities, and the range of frequencies they can hear varies among species.
Vocalizations and Calls: Birds use vocalizations and calls to communicate with each other, attract mates, establish territories, and warn of potential threats. Different bird species have unique calls and songs that they use to convey specific messages. Human voices are typically not part of their natural repertoire, so they may not respond to them in the same way they do to other bird vocalizations.
Habituation: In some cases, birds may become habituated to certain human noises, including voices, especially if they are frequently exposed to them in their environment. Habituation is a process by which an animal becomes accustomed to a repeated stimulus and may eventually ignore it.
While birds can hear human voices, their response to them may not be as strong or meaningful as their response to the vocalizations of other birds or the sounds they encounter in their natural environment. Their perception and interpretation of sounds, including human voices, are shaped by their evolutionary history, natural communication patterns, and the specific needs of their species.
It's important to note that some bird species are known for their ability to mimic human voices and other sounds, such as parrots and certain songbirds. These birds have developed a remarkable capacity to imitate human speech and other environmental noises, but this ability is not universal across all bird species.