Table 1.

Datasets in the study, along with the number of individuals tracked, body mass, wingspan and wing area, and the source of the morphometric data.

species	location	N	mass (g)	wingspan (m)	wing area (m2)	tag type	data from literature	source
Brünnich's guillemot Uria lomvia	Coats Island, Nunavut, Canada	13	949	0.727	0.069	Daily Diary	wings	Orben et al. [39]
common guillemot Uria aalge	Puffin Island, UK	6	1050	0.73	0.056	AxyTrek	mass, wings	Spear & Ainley [40]
northern fulmar Fulmarus glacialis	Saltee Islands, Ireland	3	778	1.12	0.106	Daily Diary	wings	Warham [41]
pigeon Columba livia	Radolfzell, Germany	9	456	0.647	0.064	Daily Diary	none	measured directly
red-tailed tropicbird Phaethon rubricauda	Round Island, Mauritius	10	820	1.115	0.117	Daily Diary	none	measured directly
great frigatebird Fregata minor	Europa Island	3	1113	2.084	0.365	Daily Diary	none	measured directly
black-legged kittiwake Rissa tridactyla	Middleton Island, Alaska, USA	3	387	0.965	0.101	Daily Diary	wings	Pennycuick [42] (n = 2)
imperial cormorant Leucocarbo atriceps	Punta Leon, Argentina	5	2400	1.13	0.183	Daily Diary	mass, wings	Quintana et al. [43], Spear & Ainley [40] (n = 1)
western barn owl Tyto alba	Switzerland	10	296	0.936	0.134	AxyTrek	none	measured directly
grey-headed albatross Thalassarche chrysostoma	Marion Island, South Africa	5	3290	2.186	0.348	Daily Diary	mass, wings	Phillips et al. [44] (n = 1)
wandering albatross Diomedea exulans	Marion Island, South Africa	6	8500	3.01	0.583	Daily Diary	mass, wings	Pennycuick [42]; Pennycuick [18]
streaked shearwater Calonectris leucomelas	Awashima Island, Japan	5	503	1.119	0.126	Daily Diary	wings	Shirai et al. [45]
dunlin Calidris alpina	Sweden	1	55	0.334	0.014	Axy XS	mass, wings	Hentze [46]
northern gannet Morus bassanus	Saltee Islands, Ireland	10	2856	1.85	0.262	Axy	wings	Spear & Ainley [40] (n = 1)