Plants and birds have a close association, found in various ecosystems worldwide. Plants provide habitats and food for birds, while birds serve as pollinators and contribute to biological control. Trees offer shelter and protection to birds, and dense foliage makes them less visible to predators. Birds often roost and build nests in trees, using plant materials like twigs, grass, and leaves. Different bird species exhibit diverse nesting behaviors, from simple twig nests to complex constructions using grass, cotton, and even stitched leaves. Some birds utilize tree cavities or excavate holes for nesting, while waterfowl construct nests in vegetation near water bodies. Birds have high energy requirements and rely on plants directly or indirectly through photosynthesis for food. They play vital roles in the food chain as vegetarians or omnivorous species. Vegetarian birds consume fruits, seeds, and grains, while omnivorous birds have a diverse diet, including plant matter and occasional animal prey.