Everton are the odd ones out in the Premier League. For some reason or another Everton don't have a mascot. It was Chang the Elephant (used to match their sponsors Chang beer) before that it was Mr. Toffee but know they are in Mascot limbo after moving on from the beer company as sponsors. Everton have had some had times in recent seasons and with the club fully focused on football a mascot may not appear at Goodison park this term.
They've followed the trend of having their mascot be one of their sponsors and unfortunately for Everton fans they're now sponsored by angry birds. This meant the RED bird parading around Goodison Park. The club tried to market it saying "the red is now a blue" but it hasn't gone down well the fans.