| Subject | English | German |
| agric. | building of nest | Nestbau |
| ornit. | nest building | Nestbau |
| gen. | nest-building | Nestbau |
| nat.sc. | nest-building behaviour | Verhalten beim Nestbau |
| reptil. | nest-building frogs | Südfrösche (Leptodactylus) |
| reptil. | nest-building frogs | Pfeiffrösche (Leptodactylus) |
| reptil. | nest-building frogs | Echte Pfeiffrösche (Leptodactylus) |
| reptil. | nest-building frogs | Ladenbläser (Leptodactylus) |