Several bird observations, supplementary to the recently published review of the avifauna of the Cape Verde Islands (Hazevoet 1995), were made during visits to the islands in 1995. Three species new to the archipelago were observed, viz. Phalaropus lobatus, Gelochelidon nilotica and Sterna maxima. Also reported here are extensions in time and space of both residents and migrant visitors. These include summer records of several species of waders, herons and Platalea leucorodia, and range extensions of resident breeding species, e.g. the first records of Alaemon alaudipes from the island of Sal. In addition, some new data on breeding seabirds on the islands of Sal and Boavista are presented.