Amazing Nature Contest: Thematic Challenge

(Google translate from Czech)

You know it. Sometimes a crisis comes and no idea in your head. Fortunately, others have good ideas :-)

Greetings to all fans of Amazing Nature Community

That's why I'm using an idea from @qwerrie, which pitched the idea to another thematic challenge. Prepare ladders or waterproof shoes because you will need them.

The topics for this call are:
BIRD NESTS

Before I give you a task, I want to ask you for maximum caution and consideration towards the object of your research and photography.

Your task is:

take a documentary photograph of a bird's nest
try to determine which bird the nest belongs to
if there are eggs in the nest, try to estimate their size.
!! Under no circumstances touch the eggs !!!. Make your estimation and photo shoot as quickly as possible so that the bird's parents can return to the nest in peace and take care of the eggs. !!!
Proper verbal commentary is a matter of course

A little inspiration for you.
Because our house is surrounded by trees, I have many opportunities to watch birds and also a little extra worries. With one tree, I could not agree that its branches were harmful to our gutters. So I had to climb on a hundred and prune some branches.

It was strange to me that a pair of blackbirds flew angrily around me and protested loudly. I discovered the cause of their behavior shortly afterwards. There was their nest on the tree and they had two eggs in it. I quickly took a photo of the nest, pruned the appropriate branches and quickly left their tree.

While viewing the photo on a PC, I noticed a dark dot on the almost light blue eggshell. At one egg (in the photo below) I noticed a strange "comb" on its side.
It is estimated that the eggs are about 5 cm long and 3 cm wide at the widest point.

I wish you many wonderful moments in fulfilling this challenge and I ask you once again for caution and consideration.

If you are considering participating in this challenge, please read the following lines carefully.

Competition rules:

Publish your contribution IN AN AMAZING NATURAL COMMUNITY. You can also use TAG #amazingnature if you want
CLEARLY state that your entry is an ENTRY in this competition.
All images must be your own. You can use an amazing nature banner if you like or you can create your own.
In the TEXT Indicate why these pictures represent YOUR AMAZING NATURE. This is an ESSENTIAL part of this competition – 200 WORDS MINIMUM
Place a link to your post IN COMMENTARY. You can add an image if you want. It is NECESSARY because I have to publish a link in Discord on Sunday, 5 days later for voting and also for my own compilation purposes.
The entry window is open ~ 5 DAYS. Pay attention to - CLOSED in the title. Pay attention to the time bar (PeakD)

Important!

Only competition entries that correspond to the assigned topic will be included in this competition
It is NOT possible to submit the main competition announced by the leader of the @adalger community and this thematic competition with one contribution. If this happens, such a contribution will not be included in the thematic competition.

Prizes to win:
1st: 1 HBD
2nd: 0.5 HBD
3rd: 0.25 HBD
I will introduce all participants in the entry section of the announcements, which will be published about a week later on Tuesday (according to my schedule, this may change). This way you will have a nice compilation of all.

How are winners selected?
The entire DNA community will vote for the winners. That's why we created a special competition channel #challenge-entries in DNA Discord (Amazing Nature Contest). Here I will publish a post with the announcement including the winners (Announcement) EVERY MONDAY together with all your contributions (Contributions) EVERY SUNDAY. Each DNA member will be able to assign a "voting emoji" under the items for 24 HOURS. In the end, the lucky winners are three of them. In case of a draw, I will join as a judge.

Note: The above channels on the DNA discord are for voting only! Do not post links to your competition articles and photos here!

Clickable banner by @barbara-orenya

Amazing Nature Community regularly appreciates your articles and photos.
Therefore, pay attention

a regular competition organized by the @adalger community leader
Amazing Nature Curation articles written by @redheadpei, @oscurity, @nelinoeva, @tinta-tertuang, @jlufer community moderators
news in the field of nature from the moderator @juanbg
THEMATIC CHALLENGE from @bucipuci

The Amazing Nature Community team is pleased with your interest in nature and welcomes all ORIGINAL articles and photos. At the same time, however, he points out that there is no place in the community for PLAGIATES.