1. the natural sounds or songs made by birds
2. devices or techniques used to imitate bird sounds, especially for hunting or birdwatching

Examples

• The forest was filled with beautiful birdcalls at dawn.
• She learned to identify different species by their unique birdcalls.
• The hunter used electronic birdcalls to attract ducks.
• Ornithologists study birdcalls to understand bird behavior.
• The wooden birdcalls produced realistic sounds.
• Early morning birdcalls woke us from our camping sleep.
• He practiced using birdcalls before the hunting trip.