164 



Brown Trout 



of a mole's hillock (Fig. 159). While the female is spawning the male 

 keeps guard, and if any intruders come up from behind, as they usually 



do, he turns round and rushes after them. Quite small trout are often 

 seen behind the spavvning-bed picking up the spawn that remains un- 

 covered by the gravel. Trout after spawning become kelts (Fig. 160), 



