| 100% | AVES | 4 | Class that comprises the birds |
| 66% | AVES | 4 | Class that's for the birds |
| 64% | SEXED | 5 | Class that teaches about the birds and the bees |
| 51% | ANATOLIA | 8 | Peninsula that comprises the Asian part of Turkey |
| 51% | HISTORY | 7 | Class that dwells on the past |
| 50% | STYX | 4 | River that comprises the fifth circle of Dante's Inferno |
| 48% | EARLY | 5 | Like the bird that catches the worm |
| 48% | EARLY | 5 | Like the bird that gets the worm |
| 48% | RIODEORO | 8 | Former region of Africa that comprised the southern part of Spanish Sahara |
| 48% | SEX | 3 | ___ education (class that teaches "the birds and the bees") |
| 48% | ECON | 4 | Class that covers the supply-and-demand model, for short |
| 48% | PILATES | 7 | Class that might begin with an exercise called the hundred |
| 47% | ROOSTERS | 8 | Birds that crow in the morning |
| 47% | SNOWGOOSE | 9 | Bird that summers in the Arctic |
| 47% | OWL | 3 | Bird that sleeps during the day |
| 47% | PHOENIX | 7 | Bird that rises from the ashes |
| 47% | OWL | 3 | Bird that flies in the dark |
| 47% | BIO | 3 | Class that teaches about DNA or the animal kingdom, for short |
| 46% | DODO | 4 | Bird that went extinct in the 1600s |
| 46% | EMU | 3 | Bird that's related to the ostrich |
| 46% | ATE | 3 | Peruvian district that comprises part of the city of Lima |
| 46% | TORTS | 5 | Law-school class that might cover the eggshell-skull rule |
| 45% | AVES | 4 | Vertebrate class comprising birds, in Latin |
| 45% | TRIG | 4 | Class for those who know all the angles |
| 45% | SNOWGOOSE | 9 | Bird of the American Arctic that migrates south |
| 45% | ROOSTER | 7 | Bird that crows when the sun comes up |
| 45% | EMU | 3 | Bird that can hardly get off the ground |
| 45% | FRIGATE | 7 | Bird that appears on the flag of Kiribati |
| 45% | DODO | 4 | Bird that went extinct in the 17th century |
| 45% | KOOKABURRA | 10 | Bird that appears on the Australian $20 banknote |