Roland Seitre / Tumbes Tyrant (Tumbezia salvini). Chaparri reserve, Chiclayo, Lambayeque, July.

Roland Seitre / Grey-and-white Tyrannulet (Pseudelaenia leucospodia). Chaparri reserve, Chiclayo, Lambayeque, July 2010.

Rolf Nussbaumer / Say's Phoebe (Sayornis saya) perched in on branch, Chisos Basin, Chisos Mountains, Big Bend National Park, Chihuahuan Desert, West Texas, USA

Paul Harcourt Davies / Knapweed fritillary butterfly (Melitaea phoebe) Italy

Paul Harcourt Davies / Knapweed fritillary butterfly (Melitaea phoebe) feeding, underwing showing, Italy

Wild Wonders of Europe / Maitland / Male Knapweed fritillary butterfly (Melitaea phoebe) on Pink (Dianthus sp) in mountain pasture, Mount Baba (1635 m) in Galicica National Park, Galicica National Park, Macedonia, June 2009

Wild Wonders of Europe / Maitland / Female Knapweed fritillary butterfly (Melitaea phoebe) resting on Pink (Dianthus sp) Mount Baba, Galicica National Park, Macedonia, June 2009

Wild Wonders of Europe / Maitland / Female Knapweed fritillary butterfly (Melitaea phoebe) resting on Pink (Dianthus sp) Mount Baba, Galicica National Park, Macedonia, June 2009

Rolf Nussbaumer / Eastern Phoebe {Sayornis phoebe} adult with insect prey, perched on railing, Texas, USA, April

Rolf Nussbaumer / Black Phoebe {Sayornis nigricans} Bosque de Paz, Central Valley, Costa Rica

Rolf Nussbaumer / Eastern Phoebe {Sayornis phoebe} adult collecting nesting material, Hill Country, Texas, USA

Pete Oxford / Masked Water-tyrant (Fluvicola nengeta) in the lowlands of Western Ecuador

Rolf Nussbaumer / Say's Phoebe (Sayornis saya) Big Bend National Park, Texas, USA. April 2001

Rolf Nussbaumer / Say's Phoebe (Sayornis saya), Bosque del Apache National Wildlife Refuge, New Mexico, USA. December 2003

Rolf Nussbaumer / Eastern Phoebe (Sayornis phoebe) on blooming Huisache (Acacia farnesiana) Willacy County, Rio Grande Valley, Texas, USA. April 2004

Philippe Clement / Close-up of Knapweed fritillary {Melitaea phoebe} covered in dew on Round-headed rampion {Phyteuma orbiculare} Gran Paradiso NP, Alps, Italy

Philippe Clement / Knapweed fritillary {Melitaea phoebe} covered in dew on Round-headed rampion {Phyteuma orbiculare} Gran Paradiso NP, Alps, Italy

Philippe Clement / Knapweed fritillary {Melitaea phoebe} covered in dew on Round-headed rampion {Phyteuma orbiculare} Gran Paradiso NP, Alps, Italy

Philippe Clement / Knapweed fritillary {Melitaea phoebe} covered in dew on Round-headed rampion {Phyteuma orbiculare} Gran Paradiso NP, Alps, Italy

TJ Rich / Dark-faced ground tyrant (Muscisaxicola maclovianus) Falkland Islands

Tom Vezo / Eastern Phoebe {Sayornis phoebe} on branch, Long Island, NY, USA.

Tom Vezo / Eastern Phoebe {Sayornis phoebe} profile on branch, Long Island, NY, USA.

Tom Vezo / Say's phoebe {Sayornis saya} Idaho, USA

Steven David Miller / Eastern phoebe {Sayornis phoebe} Everglades NP, Florida, USA

Gabriel Rojo / Pearly-vented tody-tyrant {Todirostrum margaritaceiventer} Cerro Colorado Argentina

Gabriel Rojo / Pearly-vented tody-tyrant {Todirostrum margaritaceiventer} Cerro Colorado Argentina

Gabriel Rojo / Great shrike-tyrant {Agriornis livida} Valdez Patagonia Argentina