Bill measurements of hummingbirds in the ecological network database

Here you will find the bill measurements of 161 hummingbird species. This is the set of species present in the network database that describes the interactions between these hummingbirds and their nectar resources (Dalsgaard et al. 2011, Martin-Gonzalez et al. 2015, Maruyama et al. 2018, Sonne et al. in press). Detailed information about the measurements can be found at the enclosed documents.<br>Further, the values for bill curvature (angle measurement) for both Topaza pyra and Trochilus polytmus were corrected in version 4 of the spreadsheet.