Park one of these right by the curb
Okay so I didn't see it posted yet but the best deterrent to birds crashing into your windows at every level is cut out owl pictures. If you want to be fancy and have the room, these statues would be excellent outdoors
Hausse 2 Pack Fake Horned Owl Bird Scarecrow Decoy, Plastic Owl Bird Deterrents, Halloween Outdoor Decoration, Nature Enemy Pest Repellent for Outdoor Garden Yard https://www.amazon.com/dp/B087X7XXJL/ref=cm_sw_r_apan_glt_i_TTRSG40FA0DGQKQV1GS5
But don't do like my elderly friend did, and crochet something colorful and owl shaped. That doesn't work.
In office buildings and houses just print out a full page sized owl in graphic detail and tape it up facing out. Animals not harming themselves and your property is more important than what your neighbor thinks about the fierce faced owl in your window
(OvO)
https://www.amazon.com/gp/product/B016ZYKPB8/ref=ox_sc_act_title_4?smid=ATVPDKIKX0DER&psc=1 i'm planning on buying it soon, love these lil dudes
The GlitZGlam store on Amazon. Everything else was cheap, free, or used, so I really splurged on this one thing. They have a few different style and color options.
Fairy Garden Decoration Crafts, 8Pcs Mini Cute Resin Soot Spirit Figures Hayao Miyazaki Black Briquettes Figurines For Fairy Garden Decoration Supplies Miniature Micro Gnome Terrarium Ornament https://www.amazon.com/dp/B07BVKHLWF/ref=cm_sw_r_cp_api_i_flokFbDW51AYA
4 Pcs/lot Princess Mononoke Tree Elves Micro Landscape Gardening Decorative Potted Flower Pots Resin Gardening Accessories Ornaments https://www.amazon.com/dp/B00NXU68DC/ref=cm_sw_r_cp_api_i_GlokFbZGJDSPS
And there are tons of decorations for your terrarium like this