(2) Flying out of the city in groups in the morning and foraging in the countryside. At dusk, groups flew back to the city and spent the night in the deep palace compound with few trees in the city.
As for birds, sparrows, crows and swallows are the most popular birds in Beijing.
5. For the understanding of the meaning of the following sentences, it is inappropriate to () (2 points)
It is a miracle that there are wild squirrels near the noisy and busy Third Ring Road in Beijing. "It's a miracle" is the author's praise for the squirrel. )
B Now in Beijing, it's been a long time since even the crow.