I shot some random seagulls in a parking lot. The background was awful, but the birds stood still. A year later, I shot a Canadian Navy ship in Halifax, Nova Scotia. Nice picture, but needs something. Maybe that seagull. So, let's put him there. (The gull and the ship are available for download at the usual source, if you would like to work along. Look for gull.jpg and ship.jpg.) Figure 20.2 shows the gull.
Select and copy the gull, then open the ship picture and paste the bird in. Figure 20.3 shows the gull after this step.