| Answer | Crossword Clue |
|---|---|
| BOOB | Palindromic birdbrain |
| TWIT | Birdbrain |
| ASS | Birdbrain |
| PINHEAD | Birdbrain |
| STUPE | Birdbrain |
| DODO | Birdbrain? |
| LOON | Birdbrain |
| KNUCKLENOODLE | Birdbrain? |
| MORON | Birdbrain |
| NITWIT | Birdbrain |
| SIMP | Birdbrain |
| IDIOT | Birdbrain |
| DOPE | Birdbrain |
| BOOB | Birdbrain |
| DINGBAT | Birdbrain |
| birdbrained | BIRDBRAIN |
| BIMBO | Birdbrain |
| DOLT | Birdbrain |
| DODO | Birdbrain |
| DODO | Extinct birdbrain? |
| DUNCECAPON | Barnyard birdbrain? |
| LOON | Bird or birdbrain |
| DITZY | Like a birdbrain |
| DODO | Brained bird or birdbrain |
| LOON | Birdbrain of a bird? |
| DODO | Birdbrain, or extinct bird |
| DODO | Extinct bird, or birdbrain |
| SMART | Far from being a birdbrain |
| birdbrains | BIRDBRAIN, one of very limited intelligence |
