It is essential that you see them, that you may know where they cluster, otherwise it might be difficult to find them. They are apt to go farther from the parent stock than others; sometimes fifty rods, and then settle in two places, perhaps that distance apart, in some high or inconvenient place to get at. (Let me not be misunderstood: I do not say they all do so, or even the majority; but I wish to say that a greater portion of these swarms do so than of the first.) If they cluster in two places, a queen may be in each, and they will remain, and when you have hived one part you may think you have all. If one cluster is without a queen, they will join the other if near; but when distant, will be very likely to return to the old stock soon, unless put together. I had a swarm light in two places, in exactly opposite directions from the stock. In one, a good swarm had clustered; in the other, some less than a pint. The small part had one or more queens, the other none. It was perceived at once by their movements. Now, if we provide a hive for a swarm, and get a few to set up the call or buzzing, they will not leave till that is stopped. There is generally no difficulty to start it. The surest way is to jar a portion or all directly into the hive. It takes a few minutes to get composed, and miss the queen. In my case I got them in the hive, and before they missed the queen, carried them to the small cluster, which I got in a dipper and emptied in front of the hive; they entered, and all were peaceable. You will therefore see the necessity of watching such swarms, to see if there is no separation, if nothing else.
Much has been said about returning all after swarms to the old stock; the advantages of which will depend on the time of issuing; whether late or early, the yield of honey, etc. It would be unusual to have many after swarms without a liberal yield of honey, for the time being; but to tell of its continuance is the question to be answered. Second, and even third swarms, if early in the season, and the honey continues plentiful, may be hived, and these, together with the old stock, will prosper. Here the apiarian needs a little judgment and experience to guide him.