Photo by R. J. Irwin. Specimens at Hawkstone. 



GROUP OF BRITISH GREBES. 



i, 2, 3. LITTLE GREBE. 



4, ii, 12, 13, 14. GREAT CRESTHD GREBE. 



5, 6. RED-NECKED GREBE. 



10. SCLAVONIAN GREBE. 



7, 8. EARED GREBE. 



