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Lizards in the genus Anolis have been the focus of many ecological and evolutionary studies (Losos 2009. Lizards in an Evolutionary Tree: Ecology and Adaptive Radiation of Anoles. University of California Press, Berkeley, California. pp. 528), yet much is still unknown about their nest-site choice in the wild (Pruett et al. 2022. Front. Ecol. Evol. 10: 821115). Female Anolis produce single-egg clutches (Mitchell et al. 2018. Evol. Ecol. 32: 231–245) and most species appear to place nests on the ground (Andrews 1988. Oecologia 76: 376–382; Pruett et al. 2022, op. cit.). Anolis sagrei, native to Cuba and the Bahamas, has been introduced around the world, including the southeastern United States (Kolbe et al. 2004. Nature 431: 177–181). Eggs and nests of A. sagrei have been previously found in leaf litter (Tiatragul et al. 2019. Biol. J. Linn. Soc. 126: 392–403) and under cover objects (Delaney et al. 2013. Herpetol. Rev. 44: 314; Pruett et al. 2020. Behav. Ecol. 31: 902–910), but here, we report arboreal nest sites of A. sagrei. On 8 July 2014, on a spoil island in the Halifax River (29.3375 N, 81.0722 W; WGS 84; 1 m elev.) near Ormond Beach, Florida, we observed a female A. sagrei perched on a cedar tree 46 cm above ground. She was oriented with her shout facing downward, pressed into soil and leaf debris that accumulated in a lateral recess, or hole (38 mm wide x 55 mm deep), on the trunk (Fig. 1). After capture, we inspected the hole and found a single, seemingly new egg buried ca. 3 mm under the soil and debris. Based on the orientation of the female, with her snout touching the soil, and the egg’s mass, 0.13 g, which is similar to the mass of …