234 



Bird - Lore 



eight feet above ordinary high tide and an extent of an acre or more. It is'the 

 opinion of an engineer with whom I conversed that all of these mud lumps 

 might be set aside en bloc as a National Reservation. While all the lumps were 

 not used as nesting-sites, any of them is apt to be so used. The lumps are sup- 

 posed to originate from the action of gas and oil domes, but there is evidently 

 a growth in their size from the ordinary course of sedimentation. There is little 



f 





are ^rofrcr* 



•S-ititii^*. 



CAPTAIX FRAXK COUVILLIER AND WARNING NOTICE ON EAST TIMBALIER 



vegetable growth on the lumps except of those weeds that come readil}- in Mis- 

 sissippi mud. 



Third. With respect to patrolling possible reservations, Grand Isle seems- 

 the most generally convenient base of operations under present conditions. 

 Lighthouses are in close proximity to the colonies at East Timbalier, Southwest 

 Pass and Pass a L'Outre. The most inaccessible colonies are those on Isle- 

 Derniere and She'l Keys, off Marsh Island. The former of these might be in- 



