You have been asked to create educational material for a school environmental club about the birdlife of Bangladesh. The material should inform readers about the diversity of birds, highlight notable resident and migratory species, explain major threats they face, and suggest practical conservation actions communities can take.

a. Write a composition of about 200 words titled "Birdlife of Bangladesh" suitable for the club newsletter.

b. Name five migratory bird species that visit Bangladesh in winter and state roughly where they migrate from.

c. Describe three main threats to birds in Bangladesh and propose two practical conservation measures to reduce those threats.

d. Write a short (2–3 sentence) community-action proposal encouraging local people to help protect birds.