Sentence:  This "Ferret-Hunting" hath his Seasons as other games have, and is onely followed at such a time of yeare, when the Gentry of our kingdome by riots, having chased them-selves out of the faire revenewes and large possession left to them by their ancestors, are forced to hide their heads like Conies, in little caves and in unfrequented places: or else being almost <WSD>windles</WSD>, by running after sensuall pleasures too feircely, they are glad (for keeping them-selves in breath so long as they can) to fal to "Ferret-hunting", that is to say, to take up commodities. 
Meaning of the word marked with <WSD> tags:  Out of breath.