Sea turtle migration Studies of loggerhead and leatherback hatchlings have shown that moonlight reflected from the sea is an important visual cue in guiding movement from the beach to the sea. This navigational mechanism becomes a handicap if nesting sites are affected by artificial lighting since this can mean that hatchlings head towards the artificial lights rather than offshore towards the moonlit sea. Hence, the use of moonlight by turtle hatchings as a navigational cue can be considered an 'evolutionary trap'. Loggerhead and green turtles can detect the orbital movement of waves and use this information to swim perpendicular to the waves crests.
Loggerhead kingbird visible in the field. The tail is squared and ends with a buffy-white band. It feeds on flying insects, small fruit and berries, and small lizards. Loggerhead kingbird The loggerhead kingbird ("Tyrannus caudifasciatus") is a species of bird in the family Tyrannidae. It is found in the Bahamas, Cayman Islands, Cuba, the Dominican Republic, Haiti, Jamaica, Puerto Rico, and, very rarely, in the United States. Its natural habitats are subtropical or tropical moist lowland forest and subtropical or tropical moist montane forest. This large kingbird measures long. It is dark grey above and white below. The head is black while