A Masked Gnatcatcher inspects its surroundings. They won't stay put, hopping from place to place incessantly. I like the first picture with the utility wires and stuff because it gives a sense of scale on how freaking tiny they are.
Yesterday I learnt that #Songbirds can produce two seperate songs at the same time. Instead of a voicebox they have a Syrinx, and can control whether they use their left lung or right lung to push air through the left or right of the syrinx, thus producing two seperate sounds or songs.