Image of little birds and big bird on wire, in analogy of small workers and big boss. The birds are a flock of Molothrus ater and/or Molothrus aeneus; Silao, Guanajuato, Mexico. Image photo-shopped based on Birds on the wire.jpg from Tomascastelazo, available on the Wikimedia Commons under the CC-BY-SA License 3.0.
Many but not all of the images on this blog are under a Creative Commons License. If and only if the image above is under a Creative Commons license, you can find details for the different licenses at the Creative Commons. The most common licenses are Attribution CC-BY 2.0; 2.5; 3.0; and 4.0; and Attribution Share Alike CC-BY-SA 2.0; 2.5; 3.0; and 4.0;