Sentences of a paragraph are given below in jumbled order. Arrange the sentences in the correct order to form a meaningful and coherent paragraph. 

A. People, started experimenting with nest boxes to help species revive.

B. Though not all efforts succeeded, birds that used cavities to nest like mynas, parakeets, owls, robins and sparrows stood a better chance.

C. However, nest boxes can be quite a problem too, often, some other species, not the one you want, occupy the nest box.

D. The Industrial Revolution brought habitat loss, excessive use of pesticides, and pollution in its wake, resulting in dwindling bird numbers.