participating in
For observations made between 2022/01/01 and 2025/06/01
Submissions accepted up to 2025/06/01
The Lycée Henri-IV is a public secondary school located in Paris. Along with the Lycée Louis-le-Grand, it is widely regarded as one of the most prestigious and demanding sixth-form colleges in France. The school educates more than 2,500 students from collège to classes préparatoires. Its motto is "Domus Omnibus Una".
289
Identifications
Identifications
281
Observations
Observations
186
Species
Species
107
People
People
Top Species
1.
Columba livia var. domestica J.F.Gmelin, 1789
19
2.
TBD
9
3.
Cymbalaria muralis G.Gaertn., B.Mey. & Scherb.
6
4.
Paulownia tomentosa
5
5.
Columba palumbus Linnaeus, 1758
5
6.
Wisteria sinensis
4
7.
Magnoliopsida
4
8.
Turdus merula Linnaeus, 1758
4
9.
Berberis
4
10.
Sturnus vulgaris Linnaeus, 1758
4
Top Observers
1.
alexbot
{:id=>"6558236", :score=>1240.0, :observations_count=>26, :species_count=>26, :percentage=>"15.92"}
2.
nbt
{:id=>"5600825", :score=>1020.0, :observations_count=>23, :species_count=>22, :percentage=>"13.09"}
3.
laetikv
{:id=>"5565460", :score=>740.0, :observations_count=>37, :species_count=>30, :percentage=>"9.50"}
4.
alexandrebot
{:id=>"6558236", :score=>540.0, :observations_count=>7, :species_count=>6, :percentage=>"6.93"}
5.
bogsuckers
{:id=>"1794233", :score=>240.0, :observations_count=>12, :species_count=>1, :percentage=>"3.08"}
6.
naturalistus
{:id=>"1949964", :score=>240.0, :observations_count=>12, :species_count=>12, :percentage=>"3.08"}
7.
comradejon
{:id=>"6571595", :score=>120.0, :observations_count=>6, :species_count=>6, :percentage=>"1.54"}
8.
louisemichaud
{:id=>"5889559", :score=>120.0, :observations_count=>6, :species_count=>6, :percentage=>"1.54"}
9.
User 99003
{:id=>nil, :score=>120.0, :observations_count=>6, :species_count=>6, :percentage=>"1.54"}
10.
iamnothelenmirren
{:id=>"6080728", :score=>120.0, :observations_count=>6, :species_count=>6, :percentage=>"1.54"}
Top Species
1.
Columba livia var. domestica J.F.Gmelin, 1789
19
2.
TBD
9
3.
Cymbalaria muralis G.Gaertn., B.Mey. & Scherb.
6
4.
Paulownia tomentosa
5
5.
Columba palumbus Linnaeus, 1758
5
6.
Wisteria sinensis
4
7.
Magnoliopsida
4
8.
Turdus merula Linnaeus, 1758
4
9.
Berberis
4
10.
Sturnus vulgaris Linnaeus, 1758
4
11.
Angiospermae
3
12.
Erigeron
3
13.
Rosa
3
14.
Erigeron karvinskianus DC.
3
15.
Asplenium scolopendrium L.
3
16.
Asplenium ruta-muraria L.
3
17.
Oxalis corniculata L.
3
18.
Mycelis muralis
3
19.
Platanus occidentalis
2
20.
Aesculus
2
21.
Robinia pseudoacacia
2
22.
Prunus serrulata
2
23.
Harmonia axyridis
2
24.
Harmonia axyridis (Pallas, 1773)
2
25.
Campanula portenschlagiana
2
26.
Genista monspessulana
2
27.
Sorbaria sorbifolia
2
28.
Crataegus
2
29.
Fuchsia
2
30.
Choisya ternata
2
31.
Santolina
2
32.
Mercurialis annua L.
2
33.
Asplenium trichomanes L.
2
34.
Corvus corone Linnaeus, 1758
2
35.
Periplaneta americana
2
36.
Lepidoptera
2
37.
Sturnus vulgaris
2
38.
Sherardia arvensis
2
39.
Parus major Linnaeus, 1758
2
40.
Campanula poscharskyana
2
41.
Cydalima perspectalis (Walker, 1859)
2
42.
Loropetalum
1
43.
Rorippa
1
44.
Thuja plicata
1
45.
Campanula poscharskyana Degen
1
46.
Bambusa
1
47.
Chamaecyparis
1
48.
Cupressoideae
1
49.
Ilex aquifolium L.
1
50.
Ilex aquifolium
1
51.
Geranium ×oxonianum P.F.Yeo
1
52.
Geranium macrorrhizum L.
1
53.
Geranium × oxonianum
1
54.
Claytonia perfoliata
1
55.
Claytonia perfoliata Donn.
1
56.
Salvia rosmarinus
1
57.
Turdus merula
1
58.
Rosaceae
1
59.
Mercurialis annua
1
60.
Psittacula krameri (Scopoli, 1769)
1
61.
Andrena fulva (Müller, 1766)
1
62.
Polydrusus impressifrons Gyllenhal, 1834
1
63.
Sorbaria sorbifolia (L.) A.Braun
1
64.
Zoropsis spinimana (Dufour, 1820)
1
65.
Attagenus
1
66.
Bryophilinae
1
67.
Chironomini
1
68.
Tanytarsini
1
69.
Gelechioidea
1
70.
Salticus
1
71.
Staphylinidae
1
72.
Homo sapiens
1
73.
Oxalis
1
74.
Rhopalapion longirostre (Olivier, 1807)
1
75.
Anthophila
1
76.
Plantae
1
77.
Diglyphus
1
78.
Cichorieae
1
79.
Empicoris
1
80.
Liquidambar styraciflua
1
81.
Coccinellini
1
82.
Cytisus multiflorus
1
83.
Genista cinerea
1
84.
Polystichum polyblepharum
1
85.
Polystichum luctuosum
1
86.
Cyrtomium fortunei
1
87.
Chrysoperla
1
88.
Lepisma saccharinum
1
89.
Tomocerus vulgaris
1
90.
Coletinia
1
91.
Steatoda
1
92.
Culiseta longiareolata
1
93.
Teucrium fruticans
1
94.
Lonicera
1
95.
Andrena nitida (Müller, 1776)
1
96.
Cimex
1
97.
Matricaria discoidea DC.
1
98.
Brassicoideae
1
99.
Geranium
1
100.
Asplenium adiantum-nigrum L.
1
101.
Cymbalaria muralis
1
102.
Lemna minor
1
103.
Syringa persica
1
104.
Poa annua
1
105.
Myathropa florea (Linnaeus, 1758)
1
106.
Ficus
1
107.
Veronica chamaedrys
1
108.
Myosotis sylvatica
1
109.
Scilla peruviana
1
110.
Aphis sambuci
1
111.
Geranium lucidum L.
1
112.
Medicago minima (L.) Bartal.
1
113.
Clitostethus arcuatus
1
114.
Calopteryx splendens (Harris, 1780)
1
115.
Arbutus unedo
1
116.
Salvia microphylla
1
117.
Salvia guaranitica
1
118.
Dryopteridoideae
1
119.
Pittosporum
1
120.
Pittosporum tenuifolium
1
121.
Deraeocoris flavilinea (A.Costa, 1862)
1
122.
Amaranthus deflexus
1
123.
Vanessa atalanta (Linnaeus, 1758)
1
124.
Halyomorpha halys (Stål, 1855)
1
125.
Lasius niger
1
126.
Portulaca oleracea L.
1
127.
Campanula portenschlagiana Schult.
1
128.
Branta leucopsis (Bechstein, 1803)
1
129.
Parietaria judaica L.
1
130.
Cornus mas
1
131.
Azara microphylla
1
132.
Alcea rosea L.
1
133.
Fagus sylvatica
1
134.
Melopsittacus undulatus
1
135.
Sceliphron caementarium (Drury, 1773)
1
136.
Pistacia vera
1
137.
Pholcus phalangioides (Fuesslin, 1775)
1
138.
Agaricomycetes
1
139.
Anas platyrhynchos Linnaeus, 1758
1
140.
Berberis julianae C.K.Schneid.
1
141.
Senecio vulgaris L.
1
142.
Lamium album L.
1
143.
Euphorbia peplus L.
1
144.
Glechoma hederacea L.
1
145.
Parietaria officinalis L.
1
146.
Cacyreus marshalli Butler, 1897
1
147.
Campanula
1
148.
Euphorbiaceae
1
149.
Salvia
1
150.
Clogmia albipunctata
1
151.
Clogmia
1
152.
Micronetinae
1
153.
Sonchus
1
154.
Polypogon
1
155.
Rattus norvegicus (Berkenhout, 1769)
1
156.
Segestria florentina (Rossi, 1790)
1
157.
Geranium potentillifolium
1
158.
Trachelospermum
1
159.
Heliophanus tribulosus
1
160.
Acer saccharinum
1
161.
Acanthus mollis
1
162.
Vespa velutina Lepeletier, 1836
1
163.
Picris hieracioides
1
164.
Erigeron karvinskianus
1
165.
Marchantia polymorpha ruderalis
1
166.
Soleirolia soleirolii
1
167.
Cyclospermum leptophyllum
1
168.
Verbena officinalis officinalis
1
169.
Mirabilis jalapa
1
170.
Asplenium scolopendrium scolopendrium
1
171.
Erigeron canadensis
1
172.
Tanacetum parthenium
1
173.
Cyclamen hederifolium
1
174.
Phytolacca americana
1
175.
Urtica urens
1
176.
Spergularia
1
177.
Gamochaeta
1
178.
Dysphania pumilio
1
179.
Gypsophila elegans
1
180.
Eleusine indica
1
181.
Euphorbia maculata
1
182.
Amaranthus hybridus
1
183.
Polystichum setiferum
1
184.
Salvia pratensis
1
185.
Oxalis dillenii
1
186.
Scrophularia vernalis
1
187.
Erigeron annuus
1
188.
Dermestidae
1
Top People
1.
alexbot
{:id=>"6558236", :score=>1240.0, :observations_count=>26, :species_count=>26, :percentage=>"15.92"}
2.
nbt
{:id=>"5600825", :score=>1020.0, :observations_count=>23, :species_count=>22, :percentage=>"13.09"}
3.
laetikv
{:id=>"5565460", :score=>740.0, :observations_count=>37, :species_count=>30, :percentage=>"9.50"}
4.
alexandrebot
{:id=>"6558236", :score=>540.0, :observations_count=>7, :species_count=>6, :percentage=>"6.93"}
5.
bogsuckers
{:id=>"1794233", :score=>240.0, :observations_count=>12, :species_count=>1, :percentage=>"3.08"}
6.
naturalistus
{:id=>"1949964", :score=>240.0, :observations_count=>12, :species_count=>12, :percentage=>"3.08"}
7.
comradejon
{:id=>"6571595", :score=>120.0, :observations_count=>6, :species_count=>6, :percentage=>"1.54"}
8.
louisemichaud
{:id=>"5889559", :score=>120.0, :observations_count=>6, :species_count=>6, :percentage=>"1.54"}
9.
User 99003
{:id=>nil, :score=>120.0, :observations_count=>6, :species_count=>6, :percentage=>"1.54"}
10.
iamnothelenmirren
{:id=>"6080728", :score=>120.0, :observations_count=>6, :species_count=>6, :percentage=>"1.54"}
11.
colejwolf
{:id=>"435637", :score=>120.0, :observations_count=>6, :species_count=>4, :percentage=>"1.54"}
12.
User 160439
{:id=>nil, :score=>110.0, :observations_count=>5, :species_count=>4, :percentage=>"1.41"}
13.
barbara848
{:id=>"4203965", :score=>100.0, :observations_count=>1, :species_count=>1, :percentage=>"1.28"}
14.
mmcinnis
{:id=>"1542984", :score=>100.0, :observations_count=>1, :species_count=>1, :percentage=>"1.28"}
15.
yvesbas
{:id=>"742957", :score=>100.0, :observations_count=>5, :species_count=>4, :percentage=>"1.28"}
16.
emilie64
{:id=>"1212508", :score=>100.0, :observations_count=>1, :species_count=>1, :percentage=>"1.28"}
17.
biancacrowley
{:id=>"1658280", :score=>100.0, :observations_count=>1, :species_count=>1, :percentage=>"1.28"}
18.
megip21
{:id=>"6732740", :score=>100.0, :observations_count=>1, :species_count=>1, :percentage=>"1.28"}
19.
omri74470
{:id=>"7910374", :score=>100.0, :observations_count=>1, :species_count=>1, :percentage=>"1.28"}
20.
ednelzah
{:id=>"4170996", :score=>80.0, :observations_count=>4, :species_count=>2, :percentage=>"1.03"}
21.
sachab
{:id=>"5291947", :score=>80.0, :observations_count=>4, :species_count=>3, :percentage=>"1.03"}
22.
Christine Rampon
{:id=>"4753155", :score=>80.0, :observations_count=>4, :species_count=>4, :percentage=>"1.03"}
23.
yannis_reignier
{:id=>"5578837", :score=>60.0, :observations_count=>3, :species_count=>3, :percentage=>"0.77"}
24.
h100
{:id=>"2574478", :score=>60.0, :observations_count=>3, :species_count=>2, :percentage=>"0.77"}
25.
User 111847
{:id=>nil, :score=>60.0, :observations_count=>3, :species_count=>3, :percentage=>"0.77"}
26.
leytonjfreid
{:id=>"5643206", :score=>60.0, :observations_count=>3, :species_count=>3, :percentage=>"0.77"}
27.
luluchouette
{:id=>"3925978", :score=>40.0, :observations_count=>2, :species_count=>2, :percentage=>"0.51"}
28.
aurelnature
{:id=>"3398852", :score=>40.0, :observations_count=>2, :species_count=>2, :percentage=>"0.51"}
29.
genrge
{:id=>"5197437", :score=>40.0, :observations_count=>2, :species_count=>2, :percentage=>"0.51"}
30.
jannawis
{:id=>"1482941", :score=>40.0, :observations_count=>2, :species_count=>2, :percentage=>"0.51"}
31.
pierrecorbrion
{:id=>"2236269", :score=>40.0, :observations_count=>2, :species_count=>2, :percentage=>"0.51"}
32.
dfrohlich
{:id=>"100254", :score=>40.0, :observations_count=>2, :species_count=>2, :percentage=>"0.51"}
33.
Cyrus Li
{:id=>"3610452", :score=>40.0, :observations_count=>2, :species_count=>2, :percentage=>"0.51"}
34.
christianpl03
{:id=>"4444250", :score=>40.0, :observations_count=>2, :species_count=>2, :percentage=>"0.51"}
35.
nicolekearney
{:id=>"2413754", :score=>40.0, :observations_count=>2, :species_count=>2, :percentage=>"0.51"}
36.
leleco
{:id=>"5529703", :score=>40.0, :observations_count=>2, :species_count=>2, :percentage=>"0.51"}
37.
Janna Wisniewski
{:id=>"1482941", :score=>40.0, :observations_count=>2, :species_count=>2, :percentage=>"0.51"}
38.
clm98043
{:id=>"3818702", :score=>40.0, :observations_count=>2, :species_count=>2, :percentage=>"0.51"}
39.
katarina70893
{:id=>"8116002", :score=>40.0, :observations_count=>2, :species_count=>2, :percentage=>"0.51"}
40.
sarahelbadawy
{:id=>"2312715", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
41.
raphaelleg
{:id=>"5250858", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
42.
Syrinx
{:id=>"3769966", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
43.
ep1564
{:id=>"2501955", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
44.
Uwe Mueller-Doblies
{:id=>"5285355", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
45.
vincentius
{:id=>"2110971", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
46.
stevegray707
{:id=>"5975030", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
47.
cld2
{:id=>"5174262", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
48.
spouze
{:id=>"5827923", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
49.
virgile10
{:id=>"5927381", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
50.
jmheberling
{:id=>"761401", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
51.
okadoner
{:id=>"3235801", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
52.
beauhaire
{:id=>"5675093", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
53.
kholmes141
{:id=>"4932436", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
54.
brendaderitis
{:id=>"948622", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
55.
voschel
{:id=>"4998324", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
56.
Y. Kawabe
{:id=>"1291030", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
57.
aurelie_b
{:id=>"6473650", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
58.
alex75588
{:id=>"1735881", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
59.
Anne-Hélène Paradis
{:id=>"1448685", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
60.
Basile petit
{:id=>"5540244", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
61.
jpollanen
{:id=>"2984636", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
62.
Nicole Kearney
{:id=>"2413754", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
63.
xavierjapiot
{:id=>"1419332", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
64.
bperezlamarque
{:id=>"6581506", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
65.
hanne56
{:id=>"2875112", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
66.
violetteversaevel
{:id=>"5944985", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
67.
claudianeop
{:id=>"5981111", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
68.
davidstern1
{:id=>"1788534", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
69.
chouchoupou
{:id=>"6988420", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
70.
nitro_the_wolf
{:id=>"6197937", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
71.
vriz
{:id=>"6308828", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
72.
Martin Kalfatovic
{:id=>"375342", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
73.
Igor Lellis do Lago
{:id=>"4905818", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
74.
katrin_simon
{:id=>"2483447", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
75.
grace_tan
{:id=>"7118134", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
76.
mickael55428
{:id=>"7273387", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
77.
wildmelissahart
{:id=>"4358919", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
78.
lorenia12
{:id=>"26540", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
79.
laurwalch
{:id=>"6778475", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
80.
migallel
{:id=>"1775428", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
81.
Hummus
{:id=>"7301986", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
82.
quarknova
{:id=>"6482226", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
83.
jacobredtop
{:id=>nil, :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
84.
User 425191
{:id=>nil, :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
85.
Anatole Maugendre
{:id=>nil, :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
86.
User 299072
{:id=>nil, :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
87.
sophiachbt
{:id=>"6719464", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
88.
maxberg79
{:id=>"2007360", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
89.
ju_stine
{:id=>"7767364", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
90.
sqrrlgrl
{:id=>"5102314", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
91.
chloe_naturalist
{:id=>"4824079", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
92.
hummus23
{:id=>"7301986", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
93.
Leyton Reid
{:id=>"5643206", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
94.
danspada
{:id=>"43073", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
95.
spotfoss
{:id=>"8088454", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
96.
erikbernotas
{:id=>"3603242", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
97.
bkmertz
{:id=>"32563", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
98.
alex78991
{:id=>"7228664", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
99.
vimariaflor
{:id=>"6471234", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
100.
suedallman
{:id=>"1685976", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
101.
Ashley Hamersma
{:id=>"2089398", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
102.
Nicole Mitidieri
{:id=>"267640", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
103.
Cole Wolf
{:id=>"435637", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
104.
lena_odessa_odonata
{:id=>"5493077", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
105.
theirreverend
{:id=>"7765100", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
106.
g70868
{:id=>"8698939", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
107.
greencribs
{:id=>"5522139", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
Recent Observations