|  | 1. | People outside at the time the quake struck reported a humming sound. 
 
 | 
|  | 2. | A drowsy humming sound and the murmur of flowing water can be discerned. 
 
 | 
|  | 3. | People in Campobasso reported a humming sound when the quake struck. 
 
 | 
|  | 4. | Once inside, Epsilon begins to make humming sounds, which alarms Caboose. 
 
 | 
|  | 5. | Hummers : A small tube that spins and creates a screaming or humming sound. 
 
 | 
|  | 6. | He doesn t speak, but communicates with body language, expressive eyebrows, and humming sounds. 
 
 | 
|  | 7. | Individuals vary, but most alpacas generally make a humming sound. 
 
 | 
|  | 8. | The names blend to form a shrill humming sound. 
 
 | 
|  | 9. | During the northern lapwing's zigzagging display flight, the bird's outer primaries produce a humming sound. 
 
 | 
|  | 10. | Trailing behind the flying hummingbird like thin black streamers, these feathers make a humming sound. 
 
 |