We have to reach back into the annals of history for this one. Regrettably for the people of Hartford, the Whalers are no longer with us. They belong to a bygone era of the NHL. We do still have their logo to remember them by, though, and it's a particularly lovely example of a hidden message done well.
The most prominent feature of the old logo is that the 'H' is picked out in gray right across the middle of it, but if you look down, you'll notice that the green area is the shape of a 'W.' As for the seemingly out of place area of blue which is positioned above the 'W'? That's the tail of a big blue whale, and gives the logo a healthy dose of playful character. We wish all sports teams were this good at thinking outside the box.