I heard that there had been many more birds a month ago, but now the number was decreasing because summer was coming to an end.
#I heard that there had been many more birds a month ago, but now the number was decreasing because summer was coming to an end.
#I heard that there had been many more birds a month ago, but now the number was decreasing because summer was coming to an end.
# I heard that there had been many more birds a month ago, but now the number was decreasing because summer was coming to an end.