It is never too early to start teaching your young one another language. I am so determined about raising a bilingual kid that I have devoted my time to create resources that will help him. He loves animals and kids often do, the first essential words are given to him in both languages, and I started adding animals as a plus. By essential words I mean words like the following: Milk, water, more, cookie, mom, dad, hunger, outside and our names of course. My kid is about to be two and is now a pro at animals sounds and animal names in English and Spanish. I have created a set of flashcards that will help me add on to the list of animals he knows. We started with the farm animals since there are tons of videos that can help you reference these animals, but I want him to extend to that long list. The flashcards I created include animals like owls, hippos, rhinos, butterfly, alligator etc.
I have also created colorful and cheerful flashcards to continue extending his vocabulary as he gets older. The following set is for kids that are a bit older, but I like to be prepared and have printed and laminated these to start demonstrating them to my kid. These are also available for purchase through Etsy, Descendencia latina and TPT. Note if you purchase the TPT cards they will be digitally and not a finished product.