Scottish Natural Heritage Commissioned Report No. 896 Islay barnacle goose roost survey 2013/2014 COMMISSIONED REPORT Commissioned Report No. 896 Islay barnacle goose roost survey 2013/2014 For further information on this report please contact: Rae McKenzie Scottish Natural Heritage Main Street Bowmore Isle of Islay ARGYLL PA43 7JJ Tel: 01496 810711 Email:
[email protected] This report should be quoted as: RPS Ecology. 2016. Islay barnacle goose roost survey 2013/2014. Scottish Natural Heritage Commissioned Report No. 896. This report, or any part of it, should not be reproduced without the permission of Scottish Natural Heritage. This permission will not be withheld unreasonably. The views expressed by the author(s) of this report should not be taken as the views and policies of Scottish Natural Heritage. © Scottish Natural Heritage 2016. COMMISSIONED REPORT Summary Islay barnacle goose roost survey 2013/2014 Commissioned Report No. 896 Project No: 14469 Contractor: RPS Ecology Year of publication: 2016 Keywords Islay; Branta leucopsis; roost; feeding areas; flyways. Background RPS Ecology undertook a survey programme of Greenland barnacle geese Branta leucopsis on Islay in winter 2013/14 to investigate goose movements to and from roosts sites on the island, three of which are designated as Special Protection Areas (SPAs) for this species. Main findings Data collected in winter 2013/14 suggest that barnacle geese are primarily utilising the three SPA locations as roost sites, but other satellite roost sites have been identified, and confirmed. Linkage between the three SPA roosts and feeding areas is discussed and certain clear flyways highlighted. Broadly, these linkages were suggested a number of years ago by Percival (1991) and it seems that overall, even with a substantially increased population that barnacle geese are creatures of habit and use similar roosts, feeding areas and flyways from year to year.