21. There are many basic differences between the flight of insects and of birds . 22. In India , poultry birds are generally kept in small units . 23. Russia's Putin and Turkey's Erdoğan: two birds of a feather? 24. An adult bird weighs nearly two kilograms . 25. Like the bird who flies over the field 26. Whether it's flies of birds or bees, 27. Every flock of birds in the sky. 28. Which is fine, he's a bird, he can fly. 29. The growing and laying birds should be fed good ration . 30. And this is a bird on the cover of science
