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".
285
Identifications
Identifications
277
Observations
Observations
185
Species
Species
103
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.
Sturnus vulgaris Linnaeus, 1758
4
9.
Turdus merula Linnaeus, 1758
4
10.
Angiospermae
3
Top Observers
1.
alexbot
{:id=>"6558236", :score=>1240.0, :observations_count=>26, :species_count=>26, :percentage=>"16.08"}
2.
nbt
{:id=>"5600825", :score=>1020.0, :observations_count=>23, :species_count=>22, :percentage=>"13.23"}
3.
laetikv
{:id=>"5565460", :score=>740.0, :observations_count=>37, :species_count=>30, :percentage=>"9.60"}
4.
alexandrebot
{:id=>"6558236", :score=>540.0, :observations_count=>7, :species_count=>6, :percentage=>"7.00"}
5.
naturalistus
{:id=>"1949964", :score=>240.0, :observations_count=>12, :species_count=>12, :percentage=>"3.11"}
6.
bogsuckers
{:id=>"1794233", :score=>240.0, :observations_count=>12, :species_count=>1, :percentage=>"3.11"}
7.
colejwolf
{:id=>"435637", :score=>120.0, :observations_count=>6, :species_count=>4, :percentage=>"1.56"}
8.
iamnothelenmirren
{:id=>"6080728", :score=>120.0, :observations_count=>6, :species_count=>6, :percentage=>"1.56"}
9.
comradejon
{:id=>"6571595", :score=>120.0, :observations_count=>6, :species_count=>6, :percentage=>"1.56"}
10.
User 99003
{:id=>nil, :score=>120.0, :observations_count=>6, :species_count=>6, :percentage=>"1.56"}
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.
Sturnus vulgaris Linnaeus, 1758
4
9.
Turdus merula Linnaeus, 1758
4
10.
Angiospermae
3
11.
Erigeron
3
12.
Rosa
3
13.
Mycelis muralis
3
14.
Oxalis corniculata L.
3
15.
Asplenium ruta-muraria L.
3
16.
Asplenium scolopendrium L.
3
17.
Erigeron karvinskianus DC.
3
18.
Platanus occidentalis
2
19.
Aesculus
2
20.
Robinia pseudoacacia
2
21.
Prunus serrulata
2
22.
Harmonia axyridis
2
23.
Campanula portenschlagiana
2
24.
Genista monspessulana
2
25.
Sorbaria sorbifolia
2
26.
Crataegus
2
27.
Fuchsia
2
28.
Choisya ternata
2
29.
Santolina
2
30.
Berberis
2
31.
Sturnus vulgaris
2
32.
Sherardia arvensis
2
33.
Lepidoptera
2
34.
Harmonia axyridis (Pallas, 1773)
2
35.
Asplenium trichomanes L.
2
36.
Mercurialis annua L.
2
37.
Campanula poscharskyana
2
38.
Cydalima perspectalis (Walker, 1859)
2
39.
Corvus corone Linnaeus, 1758
2
40.
Parus major Linnaeus, 1758
2
41.
Loropetalum
1
42.
Rorippa
1
43.
Thuja plicata
1
44.
Bambusa
1
45.
Chamaecyparis
1
46.
Cupressoideae
1
47.
Ilex aquifolium
1
48.
Geranium ×oxonianum P.F.Yeo
1
49.
Geranium × oxonianum
1
50.
Claytonia perfoliata
1
51.
Claytonia perfoliata Donn.
1
52.
Salvia rosmarinus
1
53.
Turdus merula
1
54.
Rosaceae
1
55.
Mercurialis annua
1
56.
Euphorbiaceae
1
57.
Erigeron karvinskianus
1
58.
Picris hieracioides
1
59.
Anas platyrhynchos Linnaeus, 1758
1
60.
Oxalis dillenii
1
61.
Sonchus
1
62.
Polypogon
1
63.
Segestria florentina (Rossi, 1790)
1
64.
Portulaca oleracea L.
1
65.
Salvia
1
66.
Deraeocoris flavilinea (A.Costa, 1862)
1
67.
Marchantia polymorpha ruderalis
1
68.
Verbena officinalis officinalis
1
69.
Erigeron canadensis
1
70.
Phytolacca americana
1
71.
Cyclospermum leptophyllum
1
72.
Scrophularia vernalis
1
73.
Mirabilis jalapa
1
74.
Cyclamen hederifolium
1
75.
Asplenium scolopendrium scolopendrium
1
76.
Tanacetum parthenium
1
77.
Urtica urens
1
78.
Erigeron annuus
1
79.
Polydrusus impressifrons Gyllenhal, 1834
1
80.
Zoropsis spinimana (Dufour, 1820)
1
81.
Clogmia
1
82.
Amaranthus hybridus
1
83.
Trachelospermum
1
84.
Attagenus
1
85.
Bryophilinae
1
86.
Chironomini
1
87.
Tanytarsini
1
88.
Gelechioidea
1
89.
Salticus
1
90.
Staphylinidae
1
91.
Homo sapiens
1
92.
Periplaneta americana
1
93.
Oxalis
1
94.
Calopteryx splendens (Harris, 1780)
1
95.
Anthophila
1
96.
Plantae
1
97.
Diglyphus
1
98.
Cichorieae
1
99.
Empicoris
1
100.
Liquidambar styraciflua
1
101.
Coccinellini
1
102.
Cytisus multiflorus
1
103.
Genista cinerea
1
104.
Polystichum polyblepharum
1
105.
Polystichum luctuosum
1
106.
Cyrtomium fortunei
1
107.
Chrysoperla
1
108.
Lepisma saccharinum
1
109.
Tomocerus vulgaris
1
110.
Coletinia
1
111.
Asplenium adiantum-nigrum L.
1
112.
Salvia pratensis
1
113.
Steatoda
1
114.
Culiseta longiareolata
1
115.
Teucrium fruticans
1
116.
Cacyreus marshalli Butler, 1897
1
117.
Heliophanus tribulosus
1
118.
Acer saccharinum
1
119.
Vanessa atalanta (Linnaeus, 1758)
1
120.
Sorbaria sorbifolia (L.) A.Braun
1
121.
Campanula
1
122.
Lonicera
1
123.
Andrena nitida (Müller, 1776)
1
124.
Cimex
1
125.
Brassicoideae
1
126.
Geranium
1
127.
Cymbalaria muralis
1
128.
Lemna minor
1
129.
Syringa persica
1
130.
Poa annua
1
131.
Myathropa florea (Linnaeus, 1758)
1
132.
Ficus
1
133.
Veronica chamaedrys
1
134.
Myosotis sylvatica
1
135.
Scilla peruviana
1
136.
Aphis sambuci
1
137.
Parietaria officinalis L.
1
138.
Clitostethus arcuatus
1
139.
Arbutus unedo
1
140.
Salvia microphylla
1
141.
Salvia guaranitica
1
142.
Dryopteridoideae
1
143.
Pittosporum
1
144.
Pittosporum tenuifolium
1
145.
Glechoma hederacea L.
1
146.
Amaranthus deflexus
1
147.
Lasius niger
1
148.
Geranium potentillifolium
1
149.
Cornus mas
1
150.
Azara microphylla
1
151.
Branta leucopsis (Bechstein, 1803)
1
152.
Eleusine indica
1
153.
Fagus sylvatica
1
154.
Melopsittacus undulatus
1
155.
Soleirolia soleirolii
1
156.
Lamium album L.
1
157.
Agaricomycetes
1
158.
Alcea rosea L.
1
159.
Pistacia vera
1
160.
Acanthus mollis
1
161.
Berberis julianae C.K.Schneid.
1
162.
Vespa velutina Lepeletier, 1836
1
163.
Dysphania pumilio
1
164.
Andrena fulva (Müller, 1766)
1
165.
Polystichum setiferum
1
166.
Micronetinae
1
167.
Clogmia albipunctata
1
168.
Medicago minima (L.) Bartal.
1
169.
Geranium lucidum L.
1
170.
Euphorbia peplus L.
1
171.
Matricaria discoidea DC.
1
172.
Senecio vulgaris L.
1
173.
Geranium macrorrhizum L.
1
174.
Psittacula krameri (Scopoli, 1769)
1
175.
Ilex aquifolium L.
1
176.
Campanula poscharskyana Degen
1
177.
Gamochaeta
1
178.
Halyomorpha halys (Stål, 1855)
1
179.
Pholcus phalangioides (Fuesslin, 1775)
1
180.
Spergularia
1
181.
Gypsophila elegans
1
182.
Rhopalapion longirostre (Olivier, 1807)
1
183.
Euphorbia maculata
1
184.
Sceliphron caementarium (Drury, 1773)
1
185.
Campanula portenschlagiana Schult.
1
186.
Rattus norvegicus (Berkenhout, 1769)
1
187.
Parietaria judaica L.
1
Top People
1.
alexbot
{:id=>"6558236", :score=>1240.0, :observations_count=>26, :species_count=>26, :percentage=>"16.08"}
2.
nbt
{:id=>"5600825", :score=>1020.0, :observations_count=>23, :species_count=>22, :percentage=>"13.23"}
3.
laetikv
{:id=>"5565460", :score=>740.0, :observations_count=>37, :species_count=>30, :percentage=>"9.60"}
4.
alexandrebot
{:id=>"6558236", :score=>540.0, :observations_count=>7, :species_count=>6, :percentage=>"7.00"}
5.
naturalistus
{:id=>"1949964", :score=>240.0, :observations_count=>12, :species_count=>12, :percentage=>"3.11"}
6.
bogsuckers
{:id=>"1794233", :score=>240.0, :observations_count=>12, :species_count=>1, :percentage=>"3.11"}
7.
colejwolf
{:id=>"435637", :score=>120.0, :observations_count=>6, :species_count=>4, :percentage=>"1.56"}
8.
iamnothelenmirren
{:id=>"6080728", :score=>120.0, :observations_count=>6, :species_count=>6, :percentage=>"1.56"}
9.
comradejon
{:id=>"6571595", :score=>120.0, :observations_count=>6, :species_count=>6, :percentage=>"1.56"}
10.
User 99003
{:id=>nil, :score=>120.0, :observations_count=>6, :species_count=>6, :percentage=>"1.56"}
11.
louisemichaud
{:id=>"5889559", :score=>120.0, :observations_count=>6, :species_count=>6, :percentage=>"1.56"}
12.
User 160439
{:id=>nil, :score=>110.0, :observations_count=>5, :species_count=>4, :percentage=>"1.43"}
13.
barbara848
{:id=>"4203965", :score=>100.0, :observations_count=>1, :species_count=>1, :percentage=>"1.30"}
14.
mmcinnis
{:id=>"1542984", :score=>100.0, :observations_count=>1, :species_count=>1, :percentage=>"1.30"}
15.
yvesbas
{:id=>"742957", :score=>100.0, :observations_count=>5, :species_count=>4, :percentage=>"1.30"}
16.
emilie64
{:id=>"1212508", :score=>100.0, :observations_count=>1, :species_count=>1, :percentage=>"1.30"}
17.
biancacrowley
{:id=>"1658280", :score=>100.0, :observations_count=>1, :species_count=>1, :percentage=>"1.30"}
18.
megip21
{:id=>"6732740", :score=>100.0, :observations_count=>1, :species_count=>1, :percentage=>"1.30"}
19.
omri74470
{:id=>"7910374", :score=>100.0, :observations_count=>1, :species_count=>1, :percentage=>"1.30"}
20.
Christine Rampon
{:id=>"4753155", :score=>80.0, :observations_count=>4, :species_count=>4, :percentage=>"1.04"}
21.
sachab
{:id=>"5291947", :score=>80.0, :observations_count=>4, :species_count=>3, :percentage=>"1.04"}
22.
ednelzah
{:id=>"4170996", :score=>80.0, :observations_count=>4, :species_count=>2, :percentage=>"1.04"}
23.
yannis_reignier
{:id=>"5578837", :score=>60.0, :observations_count=>3, :species_count=>3, :percentage=>"0.78"}
24.
leytonjfreid
{:id=>"5643206", :score=>60.0, :observations_count=>3, :species_count=>3, :percentage=>"0.78"}
25.
h100
{:id=>"2574478", :score=>60.0, :observations_count=>3, :species_count=>2, :percentage=>"0.78"}
26.
User 111847
{:id=>nil, :score=>60.0, :observations_count=>3, :species_count=>3, :percentage=>"0.78"}
27.
katarina70893
{:id=>"8116002", :score=>40.0, :observations_count=>2, :species_count=>2, :percentage=>"0.52"}
28.
Cyrus Li
{:id=>"3610452", :score=>40.0, :observations_count=>2, :species_count=>2, :percentage=>"0.52"}
29.
aurelnature
{:id=>"3398852", :score=>40.0, :observations_count=>2, :species_count=>2, :percentage=>"0.52"}
30.
genrge
{:id=>"5197437", :score=>40.0, :observations_count=>2, :species_count=>2, :percentage=>"0.52"}
31.
jannawis
{:id=>"1482941", :score=>40.0, :observations_count=>2, :species_count=>2, :percentage=>"0.52"}
32.
pierrecorbrion
{:id=>"2236269", :score=>40.0, :observations_count=>2, :species_count=>2, :percentage=>"0.52"}
33.
dfrohlich
{:id=>"100254", :score=>40.0, :observations_count=>2, :species_count=>2, :percentage=>"0.52"}
34.
Janna Wisniewski
{:id=>"1482941", :score=>40.0, :observations_count=>2, :species_count=>2, :percentage=>"0.52"}
35.
nicolekearney
{:id=>"2413754", :score=>40.0, :observations_count=>2, :species_count=>2, :percentage=>"0.52"}
36.
leleco
{:id=>"5529703", :score=>40.0, :observations_count=>2, :species_count=>2, :percentage=>"0.52"}
37.
clm98043
{:id=>"3818702", :score=>40.0, :observations_count=>2, :species_count=>2, :percentage=>"0.52"}
38.
luluchouette
{:id=>"3925978", :score=>40.0, :observations_count=>2, :species_count=>2, :percentage=>"0.52"}
39.
christianpl03
{:id=>"4444250", :score=>40.0, :observations_count=>2, :species_count=>2, :percentage=>"0.52"}
40.
sarahelbadawy
{:id=>"2312715", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
41.
maxberg79
{:id=>"2007360", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
42.
Martin Kalfatovic
{:id=>"375342", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
43.
chloe_naturalist
{:id=>"4824079", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
44.
User 425191
{:id=>nil, :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
45.
raphaelleg
{:id=>"5250858", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
46.
Leyton Reid
{:id=>"5643206", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
47.
erikbernotas
{:id=>"3603242", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
48.
ep1564
{:id=>"2501955", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
49.
cld2
{:id=>"5174262", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
50.
chouchoupou
{:id=>"6988420", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
51.
virgile10
{:id=>"5927381", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
52.
jmheberling
{:id=>"761401", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
53.
okadoner
{:id=>"3235801", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
54.
beauhaire
{:id=>"5675093", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
55.
kholmes141
{:id=>"4932436", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
56.
brendaderitis
{:id=>"948622", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
57.
voschel
{:id=>"4998324", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
58.
Y. Kawabe
{:id=>"1291030", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
59.
Nicole Kearney
{:id=>"2413754", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
60.
aurelie_b
{:id=>"6473650", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
61.
User 299072
{:id=>nil, :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
62.
vincentius
{:id=>"2110971", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
63.
alex78991
{:id=>"7228664", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
64.
vimariaflor
{:id=>"6471234", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
65.
Syrinx
{:id=>"3769966", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
66.
sophiachbt
{:id=>"6719464", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
67.
alex75588
{:id=>"1735881", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
68.
Basile petit
{:id=>"5540244", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
69.
jpollanen
{:id=>"2984636", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
70.
xavierjapiot
{:id=>"1419332", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
71.
bperezlamarque
{:id=>"6581506", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
72.
hanne56
{:id=>"2875112", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
73.
violetteversaevel
{:id=>"5944985", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
74.
claudianeop
{:id=>"5981111", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
75.
davidstern1
{:id=>"1788534", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
76.
spotfoss
{:id=>"8088454", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
77.
grace_tan
{:id=>"7118134", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
78.
nitro_the_wolf
{:id=>"6197937", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
79.
mickael55428
{:id=>"7273387", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
80.
wildmelissahart
{:id=>"4358919", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
81.
quarknova
{:id=>"6482226", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
82.
lorenia12
{:id=>"26540", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
83.
migallel
{:id=>"1775428", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
84.
suedallman
{:id=>"1685976", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
85.
Cole Wolf
{:id=>"435637", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
86.
jacobredtop
{:id=>nil, :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
87.
Ashley Hamersma
{:id=>"2089398", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
88.
hummus23
{:id=>"7301986", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
89.
danspada
{:id=>"43073", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
90.
Anatole Maugendre
{:id=>nil, :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
91.
Igor Lellis do Lago
{:id=>"4905818", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
92.
sqrrlgrl
{:id=>"5102314", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
93.
ju_stine
{:id=>"7767364", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
94.
stevegray707
{:id=>"5975030", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
95.
Anne-Hélène Paradis
{:id=>"1448685", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
96.
Uwe Mueller-Doblies
{:id=>"5285355", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
97.
Nicole Mitidieri
{:id=>"267640", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
98.
Hummus
{:id=>"7301986", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
99.
spouze
{:id=>"5827923", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
100.
laurwalch
{:id=>"6778475", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
101.
vriz
{:id=>"6308828", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
102.
bkmertz
{:id=>"32563", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
103.
katrin_simon
{:id=>"2483447", :score=>20.0, :observations_count=>1, :species_count=>1, :percentage=>"0.26"}
Recent Observations