Possible steps in the evolutionary development of bird navigation

Hypotheses are presented to explain the evolutionary development of navigational ability in migratory birds. Areas of discussion to describe the possible techniques are: (1) sun compass, (2) bicoordinate navigation, (3) star compass, (4) wind cues, (5) earth magnetic field, and (6) landscape features. It is concluded that landscape is the single most important cue for orientation of nonmigratory birds. The long range migratory birds appear to use a combination of cues with the relative importance of the cue dependent upon the species of the bird involved

Statement on Acid Rain and Waterfowl

Izaak Walton League of Americaunpublishednot peer reviewedOpe

Breeding Populations of Migratory Waterfowl

F33615-84-C-3404; University of Dayton Purchase Order No. R1-43007 issued February 5, 1986Report issued on: issued February 5, 1986INHS Technical Report prepared for unspecified recipien

Proximate and Ultimate Causation of Egg Size and the "Third-Chick Disadvantage" in the Western Gull

This is the publisher's version, also available electronically from http://www.jstor.org/stable/4087093?seq=1#page_scan_tab_contents.No abstract is available for this item

Nest Houses for Wood Ducks

Ope

An Abbreviated Review of Lead Poisoning in Waterfowl

Ope

Wildlife in Relation to River Development Programs

Ope

Preferential rating of duck food plants

is peer reviewedOpe

Waterfowl Censuses on the Mississippi River from St. Louis, Missouri, to Cairo, Illinois; 4 December 1974 through 26 March 1975

unpublishednot peer reviewedOpe

Waterfowl Censuses on the Mississippi River from St. Louis, Missouri, to Cairo, Illinois; 19 November 1975 through 12 April 1976

unpublishednot peer reviewedOpe