2. It takes 24 yuan to raise 1 peacock and 1 pigeon 12 yuan.

90 yuan activity funds

It is suggested that 1, two peacocks need 48 yuan for 30 days and three pigeons need 36 yuan for 30 days.

Recommendation 2. It takes 24 yuan to raise 1 peacock for 30 days and 60 yuan to raise 5 pigeons for 30 days.

Recommendation 3. It takes 72 yuan to keep three peacocks for 30 days and 1 pigeon for 30 days 12 yuan.

Recommendation 4. It takes 84 yuan to raise seven pigeons for 30 days.

Willing to choose suggestion 1.