1. Ornithology is a branch of zoology that studies birds. It studies different species of birds, their size, shape, colour, behaviour, habitat, reproduction and other aspects.

2. Ornithologists use a variety of methods to collect information about birds, such as field surveys, bird watching, studying bird behavior, and studying fossils.

1. Sunlight has seven colors.

2. Seven colours – violet, indigo, blue, green, orange, yellow and red.

3. Violet has the shortest wavelength, while red has the longest wavelength.

4. The seven colours contained in sunlight can often be seen in rainbows.

5. Rainbows are formed when sunlight passes through raindrops.