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Fieldnotes: breeding records at Niah Caves: relay lowi 1958
Fieldnotes: breeding records at Niah Caves: breeding state: sp M
Birds nest caves: improvememt of yields
List of birds for the 5th Earl of Cranbrook
Elaphe taeniura(? Var Ridleyi) ("Ular batu") in Niah cave
Fieldnotes: breeding records at Niah Caves: incubation periods of lowi 1958
Figures on Collocalia inexpectata from Timor and Sumba
Description of Collocalia inexpectata in the Rothschild collection
Fieldnotes: breeding records at Niah Caves: % good nests occupied per season
Fieldnotes: Madai Caves, Sabah
Record of "white" edible birds' nest auctions at Long Lama from 1933 to 1936
Fieldnotes: Madai nests
Figures on Collocalia esculenta and Collocalia isonota
Collocalia germani bartelsi, Collocalia "dubia", Collocalia vulcanorum
Echo-location among Collocalia
Table showing exports of black birds' nests from Sarawak for the years 1955 to 1958
Trial "Open Day" for guano, Niah Caves, 3 August 1959
Museum collection: Leiden Museum: Hydrochous gigas nests
Museum collection: Leiden Museum: various species of Collocalia and Aerodramus
Museum collection: Collocalia brevirostris from the Philippines in Western Foundation, Camarillo, CA
Table B6 : progressive measurement of the parameter r1 from May to June 1997 for 15 marked nests in Lubang Beruang
Lundu district trip: three caves
Fieldnotes: Meraja Cave, Bau: albinism
Fieldnotes: Meraja Cave, Bau: moult: part 2
Note on Niah Cave Semah, 1959