TY  - JOUR
  - O’Donoghue, P.D., O’Halloran, J. and Cross, T.F.
  - 1998
  - Unknown
  - Ringing ; Migration
  - Bill colour as an ageing technique in the Hooded Crow (Corvus corone cornix): a cautionary note.
  - Published
  - ()
DA  - 1998/NaN
ER  - 

@article{V280035020,
   = {O’Donoghue, P.D., O’Halloran, J. and Cross, T.F.},
   = {1998},
   = {Unknown},
   = {Ringing ; Migration},
   = {Bill colour as an ageing technique in the Hooded Crow (Corvus corone cornix): a cautionary note.},
   = {Published},
   = {()},
  source = {IRIS}
}