Hummingbirds are birds which belong to the biological family Trochilidae and are native to North and South America. They are the smallest of birds as most the size of the species varies from 7.5–13 cm, that is, 3–5 inches in length. The smallest extant bird species is 5 cm or 2.0 inches in size and is known as bee hummingbird, which weighs less than even 2.0 g. They are called hummingbirds because of the humming sound that is generated by their beating wings, which flap at frequencies high enough to be audible to humans. They hover in mid-air at rapid rates of flapping their wings, which vary from about 12 beats per second in the largest species, to 80 excess in some of the smallest. Their top speeds exceed 15 m/s or 54 km/h (34 mph) out of those species that have been measured in wind tunnels. Apart from that, some species can even dive at speeds in excess of 22 m/s or 79 km/h (49 mph). Hummingbirds, out of all the homeothermic animals, have the highest mass-specific metabolic rate. To conserve energy in scarcity of food, and nightly when not foraging, they can go into a state similar to hibernation called torpor, slowing their metabolic rate to 1/15th of its normal rate.

In this sub category you can download free PNG images: Hummingbird Animals. In this category "Hummingbird" we have 114 free PNG images with transparent background.

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  Hummingbird Tattoos Transparent
  Format: PNG
  Resolution: 500x500
  Size: 104.4KB
  Downloads: 1,204
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  Hummingbird Tattoos Png Image
  Format: PNG
  Resolution: 236x236
  Size: 40.1KB
  Downloads: 1,129
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  Hummingbird Png File
  Format: PNG
  Resolution: 900x802
  Size: 409.5KB
  Downloads: 1,081
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  Hummingbird Tattoos Picture
  Format: PNG
  Resolution: 1800x1500
  Size: 1.1MB
  Downloads: 1,080
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  Hummingbird Tattoos Png Pic
  Format: PNG
  Resolution: 900x900
  Size: 349.0KB
  Downloads: 1,035
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  Hummingbird Png Image
  Format: PNG
  Resolution: 671x700
  Size: 194.6KB
  Downloads: 1,012
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  Hummingbird Tattoos Download Png
  Format: PNG
  Resolution: 734x1089
  Size: 274.2KB
  Downloads: 960
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  Hummingbird Png Picture
  Format: PNG
  Resolution: 2484x1696
  Size: 1.1MB
  Downloads: 953
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  Hummingbird Transparent
  Format: PNG
  Resolution: 386x377
  Size: 104.6KB
  Downloads: 884
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  Hummingbird Free Png Image
  Format: PNG
  Resolution: 2045x1610
  Size: 3.0MB
  Downloads: 809
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  Hummingbird Tattoos Png Clipart
  Format: PNG
  Resolution: 900x1355
  Size: 999.3KB
  Downloads: 794
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  Hummingbird Tattoos Free Download Png
  Format: PNG
  Resolution: 664x611
  Size: 368.5KB
  Downloads: 755
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  Hummingbird Free Download Png
  Format: PNG
  Resolution: 719x566
  Size: 320.0KB
  Downloads: 754
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  Hummingbird Tattoos Png File
  Format: PNG
  Resolution: 600x497
  Size: 212.8KB
  Downloads: 738
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  Hummingbird Tattoos Png
  Format: PNG
  Resolution: 236x215
  Size: 27.6KB
  Downloads: 722
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  Hummingbird Tattoos Free Png Image
  Format: PNG
  Resolution: 500x447
  Size: 237.8KB
  Downloads: 641
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  Hummingbird Tattoos Png Picture
  Format: PNG
  Resolution: 367x600
  Size: 153.3KB
  Downloads: 620
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  Hummingbird Png Clipart
  Format: PNG
  Resolution: 1000x683
  Size: 224.6KB
  Downloads: 615
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  Hummingbird Png Hd
  Format: PNG
  Resolution: 1600x1600
  Size: 1.2MB
  Downloads: 581
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  Hummingbird Png
  Format: PNG
  Resolution: 1600x1513
  Size: 893.9KB
  Downloads: 558

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