Field Notes Journal

Seasonal Analysis and Species Classification

Red Admiral Butterfly

Model Family : Seasonal presence

Summary

Red Admiral Butterfly

Extended summer seasonal presence

Red Admiral Butterfly is classified as extended summer seasonal presence. The fitted seasonal window runs from about March to December, with a summer peak around August. The season is very_broad, with a sharp active window, moderate post-peak decline, and strong off-season suppression.

Confidence
Medium
Peak
August
Season
March–December

Seasonal wheel

Seasonal wheel for Red Admiral Butterfly Red Admiral Butterfly Peak: August

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
2.945
Season end month
11.51
Forcing peak month
7.745
Season width months
8.565
Season midpoint month
7.228
Season start label
March
Season end label
December
Forcing peak label
August

Observed and Simulated Seasonal Patterns

Red Admiral Butterfly Observed Presence, Abingdon
Red Admiral Butterfly Observed Presence, Abingdon
Red Admiral Butterfly Observed Totals, Abingdon
Red Admiral Butterfly Observed Totals, Abingdon
Red Admiral Butterfly Simulated Presence, Abingdon
Red Admiral 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. Red Admiral Butterfly. Field Notes Journal. ID FN-WL-SEASONAL. Version 2026.05.21. https://fieldnotesjournal.uk/wildlife/seasonal/abingdon/red_admiral_butterfly.html

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

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