Familiarize yourself with the species.
I identified the listed species myself. In some cases, exact determination can be difficult. I use the resources and knowledge I have. In addition to the appearance, location, frequency and season, I also take into account observations of the surrounding area. The presence of other species often allows conclusions to be drawn about the species to be identified. In many cases, precise identification is only possible using microscopic or molecular genetic examination. That's too ambitious for me. Have fun discovering!
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Animals
Most common observations this week
535Mallard
(Anas platyrhynchos)
Canada goose
(Branta canadensis)
European robin
(Erithacus rubecula)
European honey bee
(Apis mellifera)
Grey heron
(Ardea cinerea)
Black-headed gull
(Chroicocephalus ridibundus)
Eurasian collared dove
(Streptopelia decaocto)
Garden snail
(Cornu aspersum)
Asian ladybeetle
(Harmonia axyridis)
Mute swan
(Cygnus olor)
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This list shows species ordered by the proportion of observations marked as "introduced". The data is based on observations from iNaturalist users and therefore may contain inaccurate information.
The percentage value shown implies how many observations were made outside the original distribution area.

Domestic horse
Equus ferus caballus
93 observations in the last 30 days
100% introduced
Domestic cat
Felis catus
187 observations in the last 30 days
99.99% introduced
Cattle
Bos taurus
71 observations in the last 30 days
99.84% introduced
Giant African land snail
Lissachatina fulica
128 observations in the last 30 days
99.63% introduced
European fallow deer
Dama dama
12 observations in the last 30 days
99.44% introduced
Brown anole
Anolis sagrei
182 observations in the last 30 days
99.07% introduced
Asian ladybeetle
Harmonia axyridis
196 observations in the last 30 days
96.79% introduced
Domestic sheep
Ovis aries
55 observations in the last 30 days
96.37% introduced
Brown marmorated stink bug
Halyomorpha halys
139 observations in the last 30 days
96.1% introduced
House mouse
Mus musculus
92 observations in the last 30 days
95.89% introduced
Box tree moth
Cydalima perspectalis
Five observations in the last 30 days
94.68% introduced
Domestic dog
Canis lupus familiaris
137 observations in the last 30 days
93.28% introduced
Nutria
Myocastor coypus
130 observations in the last 30 days
88.11% introduced
Llama
Lama glama
Ten observations in the last 30 days
86.61% introduced
Domestic goat
Capra hircus
83 observations in the last 30 days
83.94% introduced
European honey bee
Apis mellifera
269 observations in the last 30 days
82.87% introduced
Egyptian goose
Alopochen aegyptiaca
186 observations in the last 30 days
81.51% introduced
European paper wasp
Polistes dominula
113 observations in the last 30 days
78.4% introduced
Domestic house spider
Tegenaria domestica
29 observations in the last 30 days
74.06% introduced
Arion
Arion species
31 observations in the last 30 days
70.16% introduced
Common earthworm
Lumbricus terrestris
28 observations in the last 30 days
68.94% introduced
Indian peafowl
Pavo cristatus
141 observations in the last 30 days
63.13% introduced
Madagascar giant day gecko
Phelsuma grandis
Nine observations in the last 30 days
60.84% introduced
Common pill woodlouse
Armadillidium vulgare
160 observations in the last 30 days
59.25% introduced
Garden snail
Cornu aspersum
201 observations in the last 30 days
57.31% introduced
Bathroom moth midge
Clogmia albipunctata
113 observations in the last 30 days
54.66% introduced
Eurasian collared dove
Streptopelia decaocto
239 observations in the last 30 days
51.06% introduced
Leopard slug
Limax maximus
126 observations in the last 30 days
48.88% introduced
Common green bottle fly
Lucilia sericata
21 observations in the last 30 days
47.52% introduced
Housefly
Musca domestica
27 observations in the last 30 days
47.11% introduced
Domestic guinea pig
Cavia porcellus
Eight observations in the last 30 days
46.55% introduced
Jamaican field cricket
Gryllus assimilis
Four observations in the last 30 days
46.15% introduced
Seven-spot ladybird
Coccinella septempunctata
179 observations in the last 30 days
42.04% introduced
Common leopard gecko
Eublepharis macularius
Four observations in the last 30 days
40.54% introduced
European garden spider
Araneus diadematus
25 observations in the last 30 days
36.89% introduced
Grove snail
Cepaea nemoralis
117 observations in the last 30 days
34.16% introduced
European hornet
Vespa crabro
25 observations in the last 30 days
32.06% introduced
Buff-tailed bumblebee
Bombus terrestris
125 observations in the last 30 days
30.03% introduced
Common striped woodlouse
Philoscia muscorum
120 observations in the last 30 days
26.62% introduced
Dromedary
Camelus dromedarius
21 observations in the last 30 days
22.96% introduced
Mute swan
Cygnus olor
192 observations in the last 30 days
22.77% introduced
Yellow mealworm beetle
Tenebrio molitor
Three observations in the last 30 days
22.22% introduced
Brown-tail moth
Euproctis chrysorrhoea
Seven observations in the last 30 days
21% introduced
Common crab spider
Xysticus cristatus
Three observations in the last 30 days
16.09% introduced
Sickle-bearing bush cricket
Phaneroptera species
12 observations in the last 30 days
16.04% introduced
Crane fly
Tipula species
22 observations in the last 30 days
14.93% introduced
Devil's coach-horse beetle
Ocypus olens
23 observations in the last 30 days
13.8% introduced
Canada goose
Branta canadensis
357 observations in the last 30 days
12.53% introduced
Mallard
Anas platyrhynchos
535 observations in the last 30 days
10.65% introduced
Common wasp
Vespula vulgaris
59 observations in the last 30 days
10.07% introduced
Garden banded snail
Cepaea hortensis
28 observations in the last 30 days
7.08% introduced
Domestic silk moth
Bombyx mori
No observations in the last 30 days
6.45% introduced
Firebug
Pyrrhocoris apterus
141 observations in the last 30 days
5.5% introduced
Alpaca
Vicugna pacos
Four observations in the last 30 days
5.36% introduced
Roman snail
Helix pomatia
120 observations in the last 30 days
5.14% introduced
African fat-tailed gecko
Hemitheconyx caudicinctus
Three observations in the last 30 days
5% introduced
Monarch butterfly
Danaus plexippus
172 observations in the last 30 days
4.52% introduced
Two-spot ladybird
Adalia bipunctata
93 observations in the last 30 days
3.51% introduced
Two-spotted cricket
Gryllus bimaculatus
24 observations in the last 30 days
2.75% introduced
Drugstore beetle
Stegobium paniceum
Four observations in the last 30 days
2.27% introduced
Desert locust
Schistocerca gregaria
23 observations in the last 30 days
1.92% introduced
Corn snake
Pantherophis guttatus
72 observations in the last 30 days
1.47% introduced
Flesh fly
Sarcophaga species
Four observations in the last 30 days
1.09% introduced
Hummingbird hawk-moth
Macroglossum stellatarum
108 observations in the last 30 days
0.85% introduced
Great house spider
Eratigena atrica
28 observations in the last 30 days
0.78% introduced
Sahara frog
Pelophylax saharicus
13 observations in the last 30 days
0.5% introduced
Picnic beetle
Glischrochilus quadrisignatus
One observation in the last 30 days
0.28% introduced
Garden bumblebee
Bombus hortorum
One observation in the last 30 days
0.2% introduced
Rook
Corvus frugilegus
160 observations in the last 30 days
0.06% introduced
Sand lizard
Lacerta agilis
Six observations in the last 30 days
0.04% introduced