What do most birds use to build their nests?

What do most birds use to build their nests?

• A. Leaves only
• B. Stones only
• C. A huge variety of materials to lay their eggs.
• D. Feathers only

Answer: (C)

Birds build nests with a wide mix of materials, chosen to suit their species and environment. Most birds use a huge variety of materials to construct their nests, drawing from twigs, grasses, leaves, mud, moss, feathers, plant fibers, and even spider silk or saliva to bind things together. This diversity helps with strength, insulation, moisture control, and camouflage, and different species have evolved to prefer different combinations. The idea that nests are made from many kinds of materials best fits what we observe across bird species, rather than restricting nests to leaves only, stones only, or feathers only.