Ardea 113 (1) Variation in migration distance does not affect arrival date in the subsequent breeding season of Dutch Barn Swallows Hirundo rustica Altenburg J.F., van den Brink B., Klaassen R.H.G., Collier M.P., van der Jeugd H.P., van de Crommenacker J. & van Horssen P.   Nest site and mate fidelity in a large Sooty Tern Onychoprion fuscatus breeding colony Feare C.J., Bristol R.M., Larose C.S, Wikelski M. & Müller U.   Dads on duty: First account of nest sitting in Barnacle ganders Scheiber I.B.R, Slettenhaar A.J., Loonen M.J.J.E & de Jong M.E.   Factors influencing roost use by Shorttoed Treecreepers Certhia brachydactyla at urban sites van Els P., Jacobs B. & Vlugt D.   Clutch size and breeding ecology of multi-brooded European Stonechats Saxicola rubicola in acidic inland heathlands and calcareous coastal dunes van Oosten H.H.   Foraging behaviour of nesting Grey Herons inferred from PIT-tagged salmonid fish Phillips K.P., Guilfoyle C., Kaufmann J., de Eyto E., Poole R., Coughlan J., Cabot D., Cross T.F., Prodöhl P.A., Reed T.E. & McGinnity P.   Birds foraging on human-derived foods in suburban areas Morisseau S.D. & Caro S.M.   First record of an ‘ino’ colour aberration in the European Pied Flycatcher Ficedula hypoleuca Fuertes-Recuero M. & Cantarero A.