Field Notes Journal

Seasonal Analysis and Species Classification

Canada Goose

Model Family : Resident detectability

Canada Goose (Branta canadensis), Radley Lakes, UK
Canada Goose (Branta canadensis), Radley Lakes, UK David Walker, Field Notes Journal ( CC BY 4.0 )
Canada Goose (Branta canadensis), Radley Lakes, UK
Canada Goose (Branta canadensis), Radley Lakes, UK David Walker, Field Notes Journal ( CC BY 4.0 )
Canada Goose (Branta canadensis), Radley Lakes, UK
Canada Goose (Branta canadensis), Radley Lakes, UK David Walker, Field Notes Journal ( CC BY 4.0 )
Canada Goose (Branta canadensis), Radley Lakes, UK
Canada Goose (Branta canadensis), Radley Lakes, UK David Walker, Field Notes Journal ( CC BY 4.0 )

Summary

Canada Goose

Resident with summer detectability collapse

Canada Goose is classified as resident with summer detectability collapse. The fitted resident detectability target peaks around April and reaches its lowest point around October. The model indicates moderate baseline presence, weak spring carry-over, strong pre-summer retention, moderate summer suppression, and moderate summer decay acceleration.

Confidence
High
Fit score
0.195
Peak detectability
April
Lowest detectability
October

Seasonal wheel

Seasonal wheel for Canada Goose Canada Goose Peak: April

Calendar strip

Jan 0.28
Feb 0.3
Mar 0.47
Apr 0.77
May 0.58
Jun 0.32
Jul 0.27
Aug 0.24
Sep 0.22
Oct 0.15
Nov 0.2
Dec 0.37

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

Classification evidence

Target peak month
4
Target peak label
April
Target trough month
10
Target trough label
October
Target peak value
0.767
Target trough value
0.154
Target mean value
0.348
Target amplitude
0.613
Baseline to peak ratio
0.31
Autumn to winter weight ratio
0.048
Year end to winter weight ratio
0.311
Decay to growth ratio
1.32

Observed and Simulated Seasonal Patterns

Canada Goose Observed Presence, Thrupp Lake
Canada Goose Observed Presence, Thrupp Lake
Canada Goose Observed Totals, Thrupp Lake
Canada Goose Observed Totals, Thrupp Lake
Canada Goose Simulated Presence, Thrupp Lake
Canada Goose Simulated Presence, Thrupp Lake

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. Canada Goose. Field Notes Journal. ID FN-WL-SEASONAL. Version 2026.05.26. https://fieldnotesjournal.uk/wildlife/seasonal/thrupp_lake/canada_goose.html

Dataset FN-WL-SEASONAL Author David Walker Publisher Field Notes Journal Version 2026.05.26

BibTeX
@dataset{fn_wl_seasonal,
  author = {Walker, David},
  title = {Canada Goose},
  year = {2026},
  publisher = {Field Notes Journal},
  version = {2026.05.26},
  url = {https://fieldnotesjournal.uk/wildlife/seasonal/thrupp_lake/canada_goose.html}
}