I'm currently studying Environmental Biosciences. My observing focus is on birds, but my bird observations are on ornitho(.de). On here I share mostly insect, sometimes plant or other animal observations. The pictures are often phone pics, I'm sorry for the rather bad quality.

Feel free to tag me in german/european bird observations. If I'm not responding, please tag me again in a separate comment, I probably overlooked it then.
You can also take a look at my Instagram profile, I'm posting mostly wildlife pics there (they are of better quality than most of my observations :) ).

Here are some hopefully useful tips and infos:

For field identification of birds:

Very helpful is the Collin's bird guide from Svensson et. al (also in other languages available). For me it's a must have.
There's also an app to it, which makes identification far more easy.
And here are some links:

• xeno-canto (sound library mostly for birds)
• Gull Research Organisation
• Identification of typical Caspian Gulls
• Corvus corone x cornix hybrids
• Distinction of Certhia brachydactyla & familiaris
• Age and sex identification of Circus cyaneus
• Identification of some quite frequently occurring duck and geese hybrids
• Aegithalos caudatus subspecies identification

For ringed birds:

• EURING.org (European bird ringing coordination)
• cr-birding.org - Color ring birding (especially helpful for ringed gulls)
• Geese.org - mainly for ringed geese, ducks and swans

For other (bird) oberservations:

• ornitho - detailed bird observations
  ornitho is a network with many websites (.de; .ch; .at; .lu; .pl; .it; .cat; [.es] and faune-france.org)
  you can access every website with the same account!

• trektellen.nl - observations of migrating birds (including NocMig and Ringing Stations)
• migraction.net - french bird migration website (also in the ornitho network)
• ebird.org - detailed worldwide bird observations
• observation.org - platform for everything living

For insect identification:

Since I'm still in quite a beginner state with insect identification, I can't provide much information yet.

For Lepidoptera, I use these websites:

• Lepiforum - detailed information about (middle) European butterflies
• Baldia's Schmetterlinge - focused on Austrian butterflies, has an interactive identification tool for Lycaenidae
• pyrgus.de - European butterflies and their ecology with many pictures

If you're into Hymenoptera take a look at the list @robertzimmermann compiled in his profile.

List of useful apps (Play Store links):

• Collins bird guide from Svensson et. al
• BirdNet - bird call identification with AI
• Animal Tracker - tracks tagged animals
• Wildbienen ID BienABest - Wild Bee ID help (for Germany)
• Flora Incognita - Plant Identification App via AI image analysis (for Germany)
• PlantNet - Plant Identification App via AI image analysis (worldwide)
• Beach Explorer - ID your beach findings on the North Sea shore (really great app!)

Oh and also take a look in the help section of iNat