151 results on '"Morris, Ralph D."'
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2. Birds and Wine Grapes: Foraging Activity Causes Small-Scale Damage Patterns in Single Vineyards
3. Mate Provisioning, Nutritional Requirements for Egg Production, and Primary Reproductive Effort of Female Common Terns Sterna hirundo
4. Egg and Chick Fates of Common Terns in Areas of High and Low Nest Density (Fin de Huevos y Crías de Sterna hirundo en Áreas de Alta y Baja Densidad de Nidos)
5. Alexander William Francis Banfield: 1918-1996
6. Another Look at Courtship Feeding and Copulation Behavior in the Common Tern
7. Investigator Disturbance, Chick Movement, and Aggressive Behavior in Ring-Billed Gulls
8. From Tragedy to Triumph: Renesting in Ring-Billed Gulls
9. In Memoriam: Roger Malcolm Evans, 1935-1998
10. Population Trends of Ring-billed Gulls Breeding on the North American Great Lakes, 1976 to 2009
11. Distribution and abundance of nesting common and Caspian terns on the North American Great Lakes, 1976 to 1999
12. Criteria for Female Choice of Mates: Courtship Feeding and Paternal Care in the Common Tern
13. Nocturnal Predation by a Black-Crowned Night Heron at a Common Tern Colony
14. Abnormal Chicks and PCB Residue Levels in Eggs of Colonial Birds on the Lower Great Lakes (1971-73)
15. Brown Noddies on Cayo Noroeste, Culebra, Puerto Rico: What Happened in 1990?
16. Occurrence and Timing of Second Clutches in Common Terns
17. Ruddy Turnstones, Great Horned Owls, and Egg Loss from Common Tern Clutches
18. Nest Spacing, Colony Location, and Breeding Success in Herring Gulls
19. Investigator Disturbance, Chick Movement, and Aggressive Behavior in Ring-Billed Gulls
20. An Experimental Study of Nest Site Selection in Common Terns
21. Field Investigations of the Biology of Common Terns Wintering in Trinidad
22. Radiotelemetry and Herring Gull Foraging Patterns
23. Shelters Decrease Gull Predation on Chicks at a Common Tern Colony (Refugios Reducen la Depredación de Polluelos de Sterna hirundo Por Parte de Gaviotas (Larus spp.))
24. Sexual Size Dimorphism and Assortative Mating in the Brown Noddy
25. A New Procedure for Transmitter Attachment: Effects on Brood Attendance and Chick Feeding Rates by Male Common Terns
26. Direct and Indirect Consequences of Mink Presence in a Common Tern Colony
27. Management of a Declining Common Tern Colony
28. Monitoring Incubation Attentiveness of Ground-Nesting Colonial Seabirds
29. A Treatment for Prevention of Hatching in Field-Incubated Ring-Billed Gull Eggs
30. The Influence of Investigator Disturbance on the Breeding Success of Ring-Billed Gulls (Larus delawarensis)
31. Comparative Breeding Success and Diet of Ring-Billed and Herring Gulls on South Limestone Island, Georgian Bay
32. Mate Guarding in Herring Gulls
33. Breeding Chronology and Reproductive Success of Seabirds on Little Tobago, Trinidad, 1975-1976
34. Whither Colonial Waterbirds: Into the Decade with a Wing or an Anvil?
35. Experimental Studies of Competitive Interaction in a Two-Species System
36. Competitive Exclusion between Microtus and Clethrionomys in the Aspen Parkland of Saskatchewan
37. Factors influencing desertion of colony sites by Common Terns (Sterna hirundo)
38. Ruddy Turnstones, Great Horned Owls, and Egg Loss from Common Tern Clutches
39. Colonial nesting waterbirds in the Canadian and U.S. waters of Lake Superior
40. A Comparison of Capture Success Between Sherman and Longworth Live Traps
41. Great Cormorant (Phalacrocorax carbo)
42. Brown Noddy (Anous stolidus)
43. Bridled Tern (Onychoprion anaethetus)
44. Courtship Feeding and Copulatory Behaviour in the Common Tern Sterna hirundo
45. A New Transmitter Package Assembly for Adult Herring Gulls
46. Trapping and Color Banding Brown Noddy and Bridled Tern Adults at the Breeding Colony
47. Patterns of adoption in ring-billed gulls: who is really winning the inter-generational conflict?
48. Infanticide in skimmers and terns: side affects of territorial attacks or inter-generational conflict?
49. Building the legal foundation for an effective public health system
50. Distribution and Abundance of Nesting Pairs of Herring Gulls ( Larus argentatus) on the North American Great Lakes, 1976 to 2000
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