Plate 25
  • PGN0025. emperor penguins Aptenodytes forsteri seeking rookery, may walk 100 miles to reach rookery, Antarctica (MR avail)
Plate 26
  • PGN0026. emperor penguins Aptenodytes forsteri seeking rookery, may walk 100 miles to reach rookery, Antarctica
Plate 27
  • PGN0027. emperor penguins Aptenodytes forsteri seeking rookery, may walk 100 miles to reach rookery, Antarctica
Plate 28
  • PGN0028. emperor penguin Aptenodytes forsteri rookery, parents can recognize chickÕs call among 50,000 birds in colony, Cape Washington, Antarctica
Plate 29
  • PGN0029. emperor penguins Aptenodytes forsteri displaying, calls are used to recognize each other and form pairs for mating, Antarctica
Plate 30
  • PGN0030. emperor penguins Aptenodytes forsteri displaying, calls are used to recognize each other and form pairs for mating, Antarctica
Plate 31
  • PGN0031. emperor penguin Aptenodytes forsteri chicks call to parents for food, parents can recognize chickÕs call among 50,000 birds, Antarctica
Plate 32
  • PGN0032. emperor penguin Aptenodytes forsteri chicks call to parents for food, parents can recognize chickÕs call among 50,000 birds, Antarctica
Plate 33
  • PGN0033. (SCH89) emperor penguin Aptenodytes forsteri chicks call to parents for food, parents can recognize chickÕs call among 50,000 birds, Antarctica (drum scan)
Plate 34
  • PGN0034. emperor penguin Aptenodytes forsteri chicks call to parents for food, parents can recognize chickÕs call among 50,000 birds, Antarctica
Plate 35
  • PGN0035. emperor penguin Aptenodytes forsteri chicks call to parents for food, parents can recognize chickÕs call among 50,000 birds, Antarctica
Plate 36
  • PGN0036. emperor penguin Aptenodytes forsteri chicks call to parents for food, parents can recognize chickÕs call among 50,000 birds, Antarctica