armature not getting attached to mesh Created an armature for a bird using animals meta-rig (I have downloaded a .blend file of a bird and trying to rig it)
I have adjusted all the bones to their places.
Using object mode, I generated a rig (but that rig was way too small, so I have scaled it)
Now I selected the bird Mesh and Shift selected the armature
When I am pressing CTRL+P I am not getting the option of deform (Originally, I thought this is happening due to behavioral changes in different versions, but more the videos i see, the more i am inclined to think this is the tipping point for my issue)
So as a workaround, I went to the Object option -&gt; Parent -&gt; Deform -&gt; selected 'With automatic weights' (nothing noticeable seems to have happening here)
Then selecting the armature going to pose mode(ctrl+Tab)
When I am moving the armature, the bird is not moving.
Options I tried so far,

I tried joining with ctrl+J
Enabled the System Console to check the error (no error displayed)
My blender version : 2.82 (also tried with 2.83 version too)
Also ensured that &quot;Auto run Python scripts&quot; is turned ON in settings
Followed the instructions from this answer

I am fairly new to the world of Blender, and most of my knowledge is either through youtube videos or blender docs.
Attaching the file
This is the procedure to have your file working OK: select the rig and delete it. Select the Metarig and press Ctrl A &quot;Apply all transform&quot;.
In the Rigify properties enable &quot;advanced options&quot;, delete target rig and target UI and choose new (with a new name) as destination.
Press Generate rig.
Hide the Metarig.
Select the mesh, shift select the new rig (the order of selection is important), choose &quot;with automatic weights&quot; option.
The advanced option is necessary only if you generate a bad rig (wrong unapplied scale) and later you try to generate a new one: some conflict can arise between old rig (even if deleted) and new one.