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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 





CAPTAIN FRANK COUVILLIER AND WARNING NOTICE ON EAST TIMBALIER 



vegetable growth on the lumps except of those weeds that come readily 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- 



