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. Author manuscript; available in PMC: 2018 Nov 14.

Published in final edited form as: J Comp Neurol. 2017 Mar 13;525(9):2152–2163. doi: 10.1002/cne.24190

Table 2.

Summary of the double cone and rod presence/absence in the retina of five raptor species investigated in this study.

Retinal region	Species
	Common buzzard		Honey buzzard		Eurasian sparrowhawk		Red kite		Peregrine falcon
	Double cones	Rods	Double cones	Rods	Double cones	Rods	Double cones	Rods	Double cones	Rods
Central fovea	No	No	No	n.a.	Yes (50.0%)	No	No	n.a.	No	No
Central retina	Yes (48.4%)	n.a.	n.a.	n.a.	Yes (37.0%)	n.a.	Yes (20.6%)	n.a.	Yes (12.3%)	n.a.
Temporal fovea	No	No	n.a.	n.a.	Yes (58.0%)	n.a.	Yes (24.1%)	n.a.	Yes (35.6%)	n.a.
Temporal retina	Yes (39.6%)	Yes	n.a.	n.a.	Yes (51.4%)	n.a.	Yes (21.3%)	n.a.	Yes (33.7%)	n.a.

n.a. – not applicable (the sample was not available or not analysed with a certain method