The rescued birds, which were brought into the charity on 11 and 13 January, are being tube-fed large amounts of sand eels that are currently out of season and are, therefore, difficult to find.
A JSPCA spokeswoman said: ‘We currently have two razorbills and three guillemots in our care that arrived after being found covered in oil on Bouley Bay beach, St Ouen’s beach, Grève de Lecq beach and at La Rocque Harbour.
‘The birds normally eat a variety of fish, such as whitebait and sprats, but they can be fussy eaters and as they are in a strange environment we need to ensure they are eating frequently and not losing weight.
‘Sand eels are the only fish they will eat at the moment, but they are out of season. We are purchasing packets from the local tackle shops and also trying to contact UK suppliers to see who can assist.
‘The birds are doing OK but one of them is a bit weak. Once we are happy with their progress, we have a shallow pond where we can monitor them and watch them preen.
‘The final stage will be releasing them to a safe area. However, they could be in our care for a minimum of six to eight weeks.’
A JustGiving campaign was launched yesterday allowing people to donate money to help buy more sand eels. The JSPCA is using about ten packs a day, which costs £30, a figure that will increase if more birds need care.
To donate, visit justgiving.com and search for ‘oiled seabirds campaign’.