Field Notes Journal

Seasonal Analysis and Species Classification

Orange Tip Butterfly

Model Family : Seasonal presence

Orange-Tip Butterfly (Anthocharis cardamines), Oxfordshire, UK
Orange-Tip Butterfly (Anthocharis cardamines), Oxfordshire, UK David Walker, Pixelfed ( CC BY 4.0 ) Source - No changes made

Summary

Orange Tip Butterfly

Moderate spring seasonal presence

Orange Tip Butterfly is classified as moderate spring seasonal presence. The fitted seasonal window runs from about April to June, with a spring peak around April. The season is moderate, with a sharp active window, strong post-peak decline, and strong off-season suppression.

Confidence
Medium
Peak
April
Season
April–June

Seasonal wheel

Seasonal wheel for Orange Tip Butterfly Orange Tip Butterfly Peak: April

Calendar strip

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Highlighted months indicate stronger modelled presence or detectability. A ring marks the fitted peak; a hollow mark indicates the trough where available.

Classification evidence

Season start month
3.75
Season end month
6.255
Forcing peak month
4.315
Season width months
2.505
Season midpoint month
5.003
Season start label
April
Season end label
June
Forcing peak label
April

Observed and Simulated Seasonal Patterns

Orange Tip Butterfly Observed Presence, Abingdon
Orange Tip Butterfly Observed Presence, Abingdon
Orange Tip Butterfly Observed Totals, Abingdon
Orange Tip Butterfly Observed Totals, Abingdon
Orange Tip Butterfly Simulated Presence, Abingdon
Orange Tip Butterfly Simulated Presence, Abingdon

Cite this dataset

You are welcome to reuse or reproduce this material under the terms of the Creative Commons CC BY 4.0 licence but please cite it using the reference below, include a link to the licence, and indicate if any changes were made.

Walker, David. Orange Tip Butterfly. Field Notes Journal. ID FN-WL-SEASONAL. Version 2026.05.21. https://fieldnotesjournal.uk/wildlife/seasonal/abingdon/orange_tip_butterfly.html

Dataset FN-WL-SEASONAL Author David Walker Publisher Field Notes Journal Version 2026.05.21
Reference: Walker, David. Orange Tip Butterfly. Field Notes Journal. ID FN-WL-SEASONAL. Version 2026.05.21.

BibTeX 
@dataset{fn_wl_seasonal,
  author = {Walker, David},
  title = {Orange Tip Butterfly},
  year = {2026},
  publisher = {Field Notes Journal},
  version = {2026.05.21},
  url = {https://fieldnotesjournal.uk/wildlife/seasonal/abingdon/orange_tip_butterfly.html}
}