Hi Adriaan,

Using the rgbif https://ropensci.org/tutorials/rgbif_tutorial/ API client you can do:

library(rgbif) library(ggplot2)

o <- occ_search(scientificName = "Pyrgus malvae", limit = 200000, fields = c("name", "month"))

ggplot(o$data) + geom_bar(aes(x = month), stat = "count", width = 1) + scale_x_continuous(breaks = seq(1, 12))

Best regards, Pieter

On 5 April 2018 at 16:07, Adriaan van Os adriaan@adriaan.biz wrote:

How do I create flight period charts for a specific (butterfly) species using the api ? An example of a flight period chart has been added (taken from http://www.microvlinders.nl/soorten/species.php?speciescode =430050&p=3.

Regards,

Adriaan van Os

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