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How fast can raptors see?

Potier, Simon LU ; Lieuvin, Margaux ; Pfaff, Michael and Kelber, Almut LU (2020) In The Journal of experimental biology 223.
Abstract

Birds, and especially raptors, are highly visual animals. Some of them have the highest spatial resolving power known in the animal kingdom, allowing prey detection at distance. While many raptors visually track fast-moving and manoeuvrable prey, requiring high temporal resolution, this aspect of their visual system has never been studied before. In this study, we estimated how fast raptors can see, by measuring the flicker fusion frequency of three species with different lifestyles. We found that flicker fusion frequency differed among species, being at least 129 Hz in the peregrine falcon, Falco peregrinus, 102 Hz in the saker falcon, Falco cherrug, and 81 Hz in the Harris's hawk, Parabuteo unicinctus We suggest a potential link... (More)

Birds, and especially raptors, are highly visual animals. Some of them have the highest spatial resolving power known in the animal kingdom, allowing prey detection at distance. While many raptors visually track fast-moving and manoeuvrable prey, requiring high temporal resolution, this aspect of their visual system has never been studied before. In this study, we estimated how fast raptors can see, by measuring the flicker fusion frequency of three species with different lifestyles. We found that flicker fusion frequency differed among species, being at least 129 Hz in the peregrine falcon, Falco peregrinus, 102 Hz in the saker falcon, Falco cherrug, and 81 Hz in the Harris's hawk, Parabuteo unicinctus We suggest a potential link between fast vision and hunting strategy, with high temporal resolution in the fast-flying falcons that chase fast-moving, manoeuvrable prey and a lower resolution in the Harris's hawk, which flies more slowly and targets slower prey.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Falcon, Flicker fusion frequency, Hawk, Raptor, Temporal resolution, Vision
in
The Journal of experimental biology
volume
223
article number
jeb209031
publisher
The Company of Biologists Ltd
external identifiers
  • pmid:31822552
  • scopus:85077475209
ISSN
1477-9145
DOI
10.1242/jeb.209031
language
English
LU publication?
yes
id
1e138921-9340-4729-a8a3-443d6d93e412
date added to LUP
2020-01-21 16:56:58
date last changed
2021-04-13 06:02:52
@article{1e138921-9340-4729-a8a3-443d6d93e412,
  abstract     = {<p>Birds, and especially raptors, are highly visual animals. Some of them have the highest spatial resolving power known in the animal kingdom, allowing prey detection at distance. While many raptors visually track fast-moving and manoeuvrable prey, requiring high temporal resolution, this aspect of their visual system has never been studied before. In this study, we estimated how fast raptors can see, by measuring the flicker fusion frequency of three species with different lifestyles. We found that flicker fusion frequency differed among species, being at least 129 Hz in the peregrine falcon, Falco peregrinus, 102 Hz in the saker falcon, Falco cherrug, and 81 Hz in the Harris's hawk, Parabuteo unicinctus We suggest a potential link between fast vision and hunting strategy, with high temporal resolution in the fast-flying falcons that chase fast-moving, manoeuvrable prey and a lower resolution in the Harris's hawk, which flies more slowly and targets slower prey.</p>},
  author       = {Potier, Simon and Lieuvin, Margaux and Pfaff, Michael and Kelber, Almut},
  issn         = {1477-9145},
  language     = {eng},
  month        = {01},
  publisher    = {The Company of Biologists Ltd},
  series       = {The Journal of experimental biology},
  title        = {How fast can raptors see?},
  url          = {http://dx.doi.org/10.1242/jeb.209031},
  doi          = {10.1242/jeb.209031},
  volume       = {223},
  year         = {2020},
}