WhenToBird

3 goose species in Delaware

When Do Geese Arrive in Delaware?

Adult Canada Goose
Photo: Tser, CC BY 4.0 via iNaturalist

Canada Geese, Snow Geese, and Brants are the geese you are most likely to see in Delaware. The Canada Goose is in Delaware all year. It turns up on about 46% of checklists at its peak (the second week of April) and on 19% in its quietest week (late June).

When to look

PresentAll year
Peak weekApr 8-14the second week of April
Quietest weekJun 22-30late June

Best: the second week of April. Here all year. Peak: on about 46% of Delaware checklists.

  1. Janpeak season
  2. Febpeak season
  3. Marpeak season
  4. Aprpeak season
  5. Maypeak season
  6. Juncommon
  7. Julcommon
  8. Augcommon
  9. Sepcommon
  10. Octpeak season
  11. Novpeak season
  12. Decpeak season

Darker months: more checklists report it. Outlined: peak month.

Geese in Delaware, species by species

SpeciesFirst arrivalsCommon byPeakMost gone byPeak %
Canada Gooseall year–Apr 8-14–46%
Snow GooseNov 1-7Nov 22-30Dec 22-31Mar 8-1422%
BrantOct 22-31Nov 1-7Jan 22-31Apr 8-145.1%
0%20%40%60%Canada GooseSnow GooseBrantJanFebMarAprMayJunJulAugSepOctNovDec
  • Canada Goose
  • Snow Goose
  • Brant
Share of complete checklists reporting each species, by week (4 per month). Gaps: fewer than 10 checklists that week.

Frequency is the share of complete checklists in Delaware that listed the bird, 2016–2025. It is not a head count, and it follows where and when people go birding. How to read it.

Where in Delaware

Best counties for Canada Goose

Share of checklists at the peak
  1. Kent CountyBest mid November · 608 checklists that week, 36,693 in all57%
  2. New Castle CountyBest early March · 1367 checklists that week, 72,140 in all57%
  3. Sussex CountyBest mid April · 2160 checklists that week, 91,027 in all38%

Common questions

When do geese arrive in Delaware?
The Canada Goose is in Delaware all year. It turns up on about 46% of checklists at its peak (the second week of April) and on 19% in its quietest week (late June).
When do geese leave Delaware?
The Canada Goose does not leave Delaware: it is reported all year, from 19% of checklists in late June to 46% in the second week of April.
When is the best time to see geese in Delaware?
The Canada Goose is reported most often in the second week of April, on about 46% of Delaware checklists.
Which geese are in Delaware?
Canada Goose, Snow Goose, and Brant are reported regularly; the Canada Goose is the most common.