171. lagoon, as also does Gygis I believe. In times of hurricanes, numerous ocean-birds Fregata and even Petrels may appear but never stay. As Beaupre Island to the west is much more frequented by sea-birds and has breeding colonies to the north of it on sandbanks, I will leave mention of sea-birds to that area. The two common Sternas of Uvea are exceed- ingly plentiful and give an impression of a great area for sea-birds, but such is not the case. I saw one pair of Phaethon lepturus over the ocean coast once and it is a fairly frequent visitor, but does not breed. It is possi- ble Gygis and possibly Sterna nereis exsul may visit the lagoon at certain seasons in large numbers, but this is open to doubt, especially in the case of the latter. Non ornithological observers might think Uvea a good place for sea-birds (and it is for two species) but I doubt it ever is from native accounts (reliable as regards the lagoon) and certainly not from February to June. Migrant waders are plentiful, but only the usual sorts one would expect, plus Terekia cineria. ADDITIONAL NOTES:- It is noticeable on Uvea that numbers of birds show a tendency towards mimicry. A certain amount of this may be purely accidental, the birds really having calls of a similar nature, but certain definite cases of mimicry occur. Naturally the volume of sound may be different, but the notes appear to be the same and the length of call the same. Those noticed and the species mimicked were as follows: LICHMERA mimicked calls of Pachycephala, Aplonis and Myiagra. PACHYCEPHALA mimicked calls of Aplonis and Nymphicus.