KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 52. N:o 17. 31 
Fig. 17. Nest of Micreca assimilis, Museum in Perth. 
Fig. 18. Nest of Lalage tricolor indistineta from Mowla Downs. 
Fig. 19. Nests in colonies of Petrochelidon nigricans neglecta from Mowla Downs 
(the foto. is taken in a cavation in ruinlike sandstone cliffs). 
