Field Notes Journal

Seasonal Analysis and Species Classification

Common Vetch

Model Family : Seasonal presence

Summary

Common Vetch

Moderate spring seasonal presence

Common Vetch is classified as moderate spring seasonal presence. The fitted seasonal window runs from about May to July, with a spring peak around May. The season is moderate, with a sharp active window, strong post-peak decline, and strong off-season suppression.

Confidence
High
Fit score
0.036
Peak
May
Season
May–July

Seasonal wheel

Seasonal wheel for Common Vetch Common Vetch Peak: May

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
4.545
Season end month
7.19
Forcing peak month
5.19
Season width months
2.645
Season midpoint month
5.868
Season start label
May
Season end label
July
Forcing peak label
May

Observed and Simulated Seasonal Patterns

Common Vetch Observed Presence, Abingdon
Common Vetch Observed Presence, Abingdon
Common Vetch Observed Totals, Abingdon
Common Vetch Observed Totals, Abingdon
Common Vetch Simulated Presence, Abingdon
Common Vetch 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. Common Vetch. Field Notes Journal. ID FN-WL-SEASONAL. Version 2026.05.26. https://fieldnotesjournal.uk/wildlife/seasonal/abingdon/common_vetch.html

Dataset FN-WL-SEASONAL Author David Walker Publisher Field Notes Journal Version 2026.05.26
Reference: Walker, David. Common Vetch. Field Notes Journal. ID FN-WL-SEASONAL. Version 2026.05.26.

BibTeX 
@dataset{fn_wl_seasonal,
  author = {Walker, David},
  title = {Common Vetch},
  year = {2026},
  publisher = {Field Notes Journal},
  version = {2026.05.26},
  url = {https://fieldnotesjournal.uk/wildlife/seasonal/abingdon/common_vetch.html}
}