A review of larger Philippine swiftlets of the genus CollocaliaPublished in Forktail, in 1989, in volume 4, pages 19-53Created: 2019-04-28, modified: 2019-04-28A review of smaller Philippine swiftlets of the genus CollocaliaPublished in Forktail, in 1989, in volume 5, pages 23-34Created: 2019-04-28, modified: 2019-04-28
A review of smaller Philippine swiftlets of the genus CollocaliaPublished in Forktail, in 1989, in volume 5, pages 23-34Created: 2019-04-28, modified: 2019-04-28
